BOFA INSIGHTS

Carbide HRC60 Corner Radius End Mill for Steel and Mould Materials | BOFA Manufacturer

Carbide HRC60 Corner Radius End Mill for Steel and Mould Materials

BOFA HRC60 corner radius end mills combine a radiused cutting corner with solid-carbide flute geometry for reliable profile and shoulder milling. See the product details below for the series reference.

Quotation support

Contact BOFA with the workpiece material, radius requirement, tool diameter and quantity for a compatible solution.

Applications and material selection

Corner-radius geometry for profiles, shoulders and a supported cutting edge. Steels, alloy steels and mould materials; confirm the exact grade and measured hardness before cutting.

Engineering specification fields

Field	Published value / required confirmation
Series hardness	HRC60 is the BOFA series designation; confirm workpiece HRC/HB.
Substrate	Solid carbide; exact grade code, grain size and cobalt content require BOFA datasheet confirmation.
Coating	Coating family and thickness are not published in the current chart; confirm for the material and diameter.
Geometry	Corner-radius geometry for profiles, shoulders and a supported cutting edge.
Size and reach	Confirm diameter or ball/corner radius, cutting length, shank and overall length from the current series chart.
Spindle speed / feed / depth	Condition-card values based on material, diameter, engagement, overhang, holder and coolant.
Machine interface	State spindle taper, holder type and gauge length; use the shortest safe overhang.
Tolerance / runout	Specify diameter/length tolerance and tool-tip runout measurement position in the RFQ.
Insert match	Not applicable: solid-carbide end mill with no replaceable insert.

Frequently asked questions

What geometry is this series designed for?

Corner-radius geometry for profiles, shoulders and a supported cutting edge.

Which workpiece materials can I machine?

Send the exact material grade—mould steel, carbon/alloy steel, stainless steel, cast iron, aluminium or another alloy—and its measured HRC/HB. Geometry and coating must be confirmed for the actual material.

What does the HRC series number mean?

HRC60 or HRC65 is the BOFA series designation, not a universal workpiece hardness limit. Allowable hardness depends on material, heat treatment, diameter, overhang and operation.

What carbide grade and coating are supplied?

The current product summary does not publish a grade code, grain size or cobalt percentage. Coating family and thickness are not published in the current chart; confirm for the material and diameter. Request the BOFA datasheet before ordering.

How do I choose rpm, feed and depth of cut?

Provide tool size, material and hardness, operation, overhang, holder, coolant and target finish. BOFA can return rpm, feed per tooth, table feed, axial depth and radial engagement for the setup.

Which holder, tolerance and runout should I specify?

State spindle taper, holder type, gauge length, diameter/length tolerance and tool-tip runout target. The current product summary does not publish guaranteed values, so BOFA will confirm them before quotation.

Technical RFQ — product pre-filled

Send the exact diameter or radius, reach, material, hardness, holder interface, tolerance/runout, quantity and drawing.

Open the pre-filled technical RFQ →

Carbide HRC65 Rainbow Flat End Mill for Hardened Mold Steel | BOFA Manufacturer

Carbide HRC65 Rainbow Flat End Mill for Hardened Mold Steel

BOFA HRC65 rainbow flat end mills offer a solid-carbide, coated option for precision milling applications. The images below show representative product and cutting-edge details.

Selection support

Provide your material, tool diameter, cutting length and required quantity. BOFA will help confirm the right series configuration before quotation.

Applications and material selection

Flat geometry for slots, pockets, planar walls and general profiling. Hardened steel and mould-material applications; confirm the exact grade and measured hardness before cutting.

Engineering specification fields

Field	Published value / required confirmation
Series hardness	HRC65 is the BOFA series designation; confirm workpiece HRC/HB.
Substrate	Solid carbide; exact grade code, grain size and cobalt content require BOFA datasheet confirmation.
Coating	Rainbow coating is the series name; chemistry and thickness must be confirmed on the datasheet.
Geometry	Flat geometry for slots, pockets, planar walls and general profiling.
Size and reach	Confirm diameter or ball/corner radius, cutting length, shank and overall length from the current series chart.
Spindle speed / feed / depth	Condition-card values based on material, diameter, engagement, overhang, holder and coolant.
Machine interface	State spindle taper, holder type and gauge length; use the shortest safe overhang.
Tolerance / runout	Specify diameter/length tolerance and tool-tip runout measurement position in the RFQ.
Insert match	Not applicable: solid-carbide end mill with no replaceable insert.

Frequently asked questions

What geometry is this series designed for?

Flat geometry for slots, pockets, planar walls and general profiling.

Which workpiece materials can I machine?

What does the HRC series number mean?

HRC60 or HRC65 is the BOFA series designation, not a universal workpiece hardness limit. Allowable hardness depends on material, heat treatment, diameter, overhang and operation.

What carbide grade and coating are supplied?

The current product summary does not publish a grade code, grain size or cobalt percentage. Rainbow coating is the series name; chemistry and thickness must be confirmed on the datasheet. Request the BOFA datasheet before ordering.

How do I choose rpm, feed and depth of cut?

Provide tool size, material and hardness, operation, overhang, holder, coolant and target finish. BOFA can return rpm, feed per tooth, table feed, axial depth and radial engagement for the setup.

Which holder, tolerance and runout should I specify?

Technical RFQ — product pre-filled

Send the exact diameter or radius, reach, material, hardness, holder interface, tolerance/runout, quantity and drawing.

Open the pre-filled technical RFQ →

Carbide HRC65 Rainbow Ball Nose End Mill for Hardened Mold Steel | BOFA Manufacturer

Carbide HRC65 Rainbow Ball Nose End Mill for Hardened Mold Steel

BOFA HRC65 rainbow ball nose end mills are a coated solid-carbide solution for profile and curved-surface machining. Review the series details below and contact BOFA for compatible dimensions.

Application support

Send your material, required radius, cutting length and machine details for BOFA tool-selection and quotation support.

Applications and material selection

Ball-nose geometry for 3D profiling, contouring and curved-surface finishing. Hardened steel and mould-material applications; confirm the exact grade and measured hardness before cutting.

Engineering specification fields

Field	Published value / required confirmation
Series hardness	HRC65 is the BOFA series designation; confirm workpiece HRC/HB.
Substrate	Solid carbide; exact grade code, grain size and cobalt content require BOFA datasheet confirmation.
Coating	Rainbow coating is the series name; chemistry and thickness must be confirmed on the datasheet.
Geometry	Ball-nose geometry for 3D profiling, contouring and curved-surface finishing.
Size and reach	Confirm ball radius, cutting length, shank and overall length from the current series chart.
Spindle speed / feed / depth	Condition-card values based on material, diameter, engagement, overhang, holder and coolant.
Machine interface	State spindle taper, holder type and gauge length; use the shortest safe overhang.
Tolerance / runout	Specify diameter/length tolerance and tool-tip runout measurement position in the RFQ.
Insert match	Not applicable: solid-carbide end mill with no replaceable insert.

Frequently asked questions

What geometry is this series designed for?

Ball-nose geometry for 3D profiling, contouring and curved-surface finishing.

Which workpiece materials can I machine?

What does the HRC65 series number mean?

HRC65 is the BOFA series designation, not a universal workpiece hardness limit. Allowable hardness depends on material, heat treatment, diameter, overhang and operation.

What carbide grade and coating are supplied?

How do I choose rpm, feed and depth of cut?

Provide tool size, material and hardness, operation, overhang, holder, coolant and target finish. BOFA can return rpm, feed per tooth, table feed, axial depth and radial engagement for the setup.

Which holder, tolerance and runout should I specify?

Technical RFQ — product pre-filled

Send the exact radius, reach, material, hardness, holder interface, tolerance/runout, quantity and drawing.

Open the pre-filled technical RFQ →

Carbide HRC65 Rainbow Corner Radius End Mill for Hardened Mold Steel | BOFA Manufacturer

Carbide HRC65 Rainbow Corner Radius End Mill for Hardened Mold Steel

BOFA HRC65 rainbow-coated corner radius end mills are designed for stable solid-carbide milling operations. Review the product images below and contact our team for diameter, length and coating recommendations.

Quotation support

Share the workpiece material, required tool diameter, cutting length and quantity for a compatible BOFA quotation.

Applications and material selection

Corner-radius geometry for supported edges on shoulders, profiles and finishing transitions. Hardened steel and mould-material applications; confirm the exact grade and measured hardness before cutting.

Engineering specification fields

Field	Published value / required confirmation
Series hardness	HRC65 is the BOFA series designation; confirm workpiece HRC/HB.
Substrate	Solid carbide; exact grade code, grain size and cobalt content require BOFA datasheet confirmation.
Coating	Rainbow coating is the series name; chemistry and thickness must be confirmed on the datasheet.
Geometry	Corner-radius geometry for supported edges on shoulders, profiles and finishing transitions.
Size and reach	Confirm diameter or ball/corner radius, cutting length, shank and overall length from the current series chart.
Spindle speed / feed / depth	Condition-card values based on material, diameter, engagement, overhang, holder and coolant.
Machine interface	State spindle taper, holder type and gauge length; use the shortest safe overhang.
Tolerance / runout	Specify diameter/length tolerance and tool-tip runout measurement position in the RFQ.
Insert match	Not applicable: solid-carbide end mill with no replaceable insert.

Frequently asked questions

What geometry is this series designed for?

Corner-radius geometry for supported edges on shoulders, profiles and finishing transitions.

Which workpiece materials can I machine?

What does the HRC series number mean?

HRC60 or HRC65 is the BOFA series designation, not a universal workpiece hardness limit. Allowable hardness depends on material, heat treatment, diameter, overhang and operation.

What carbide grade and coating are supplied?

How do I choose rpm, feed and depth of cut?

Provide tool size, material and hardness, operation, overhang, holder, coolant and target finish. BOFA can return rpm, feed per tooth, table feed, axial depth and radial engagement for the setup.

Which holder, tolerance and runout should I specify?

Technical RFQ — product pre-filled

Send the exact diameter or radius, reach, material, hardness, holder interface, tolerance/runout, quantity and drawing.

Open the pre-filled technical RFQ →

Carbide HRC60 Flat End Mill for Steel and Mould Materials | BOFA Manufacturer

Carbide HRC60 Flat End Mill for Steel and Mould Materials

BOFA HRC60 flat end mills provide a practical solid-carbide solution for general milling operations. Product images below show the cutting-edge and flute geometry reference for this series.

Selection support

Tell BOFA the workpiece material, required diameter, flute preference and overall length for a compatible recommendation.

Applications and material selection

Flat geometry for slots, pockets, planar walls and general profiling. Steels, alloy steels and mould materials; confirm the exact grade and measured hardness before cutting.

Engineering specification fields

Field	Published value / required confirmation
Series hardness	HRC60 is the BOFA series designation; confirm workpiece HRC/HB.
Substrate	Solid carbide; exact grade code, grain size and cobalt content require BOFA datasheet confirmation.
Coating	Coating family and thickness are not published in the current chart; confirm for the material and diameter.
Geometry	Flat geometry for slots, pockets, planar walls and general profiling.
Size and reach	Confirm diameter or ball/corner radius, cutting length, shank and overall length from the current series chart.
Spindle speed / feed / depth	Condition-card values based on material, diameter, engagement, overhang, holder and coolant.
Machine interface	State spindle taper, holder type and gauge length; use the shortest safe overhang.
Tolerance / runout	Specify diameter/length tolerance and tool-tip runout measurement position in the RFQ.
Insert match	Not applicable: solid-carbide end mill with no replaceable insert.

Frequently asked questions

What geometry is this series designed for?

Flat geometry for slots, pockets, planar walls and general profiling.

Which workpiece materials can I machine?

What does the HRC series number mean?

HRC60 or HRC65 is the BOFA series designation, not a universal workpiece hardness limit. Allowable hardness depends on material, heat treatment, diameter, overhang and operation.

What carbide grade and coating are supplied?

How do I choose rpm, feed and depth of cut?

Provide tool size, material and hardness, operation, overhang, holder, coolant and target finish. BOFA can return rpm, feed per tooth, table feed, axial depth and radial engagement for the setup.

Which holder, tolerance and runout should I specify?

Technical RFQ — product pre-filled

Send the exact diameter or radius, reach, material, hardness, holder interface, tolerance/runout, quantity and drawing.

Open the pre-filled technical RFQ →

Carbide HRC60 Ball Nose End Mill for Steel and Mould Materials | BOFA Manufacturer

Carbide HRC60 Ball Nose End Mill for Steel and Mould Materials

BOFA HRC60 ball nose end mills are intended for profile machining, contouring and curved-surface finishing. The full product-image set below provides detailed reference for the series.

Application support

Send the material, required ball radius, cutting length and machine details to BOFA for tool selection and quotation support.

Applications and material selection

Ball-nose geometry for contouring, 3D profiles and curved-surface finishing. Steels, alloy steels and mould materials; confirm the exact grade and measured hardness before cutting.

Engineering specification fields

Field	Published value / required confirmation
Series hardness	HRC60 is the BOFA series designation; confirm workpiece HRC/HB.
Substrate	Solid carbide; exact grade code, grain size and cobalt content require BOFA datasheet confirmation.
Coating	Coating family and thickness are not published in the current chart; confirm for the material and diameter.
Geometry	Ball-nose geometry for contouring, 3D profiles and curved-surface finishing.
Size and reach	Confirm diameter or ball/corner radius, cutting length, shank and overall length from the current series chart.
Spindle speed / feed / depth	Condition-card values based on material, diameter, engagement, overhang, holder and coolant.
Machine interface	State spindle taper, holder type and gauge length; use the shortest safe overhang.
Tolerance / runout	Specify diameter/length tolerance and tool-tip runout measurement position in the RFQ.
Insert match	Not applicable: solid-carbide end mill with no replaceable insert.

Frequently asked questions

What geometry is this series designed for?

Ball-nose geometry for contouring, 3D profiles and curved-surface finishing.

Which workpiece materials can I machine?

What does the HRC series number mean?

HRC60 or HRC65 is the BOFA series designation, not a universal workpiece hardness limit. Allowable hardness depends on material, heat treatment, diameter, overhang and operation.

What carbide grade and coating are supplied?

How do I choose rpm, feed and depth of cut?

Provide tool size, material and hardness, operation, overhang, holder, coolant and target finish. BOFA can return rpm, feed per tooth, table feed, axial depth and radial engagement for the setup.

Which holder, tolerance and runout should I specify?

Technical RFQ — product pre-filled

Send the exact diameter or radius, reach, material, hardness, holder interface, tolerance/runout, quantity and drawing.

Open the pre-filled technical RFQ →

Carbide HRC55 Micro 4-Flute Flat End Mill for Hardened Mold Steel | BOFA Manufacturer

Carbide HRC55 Micro 4-Flute Flat End Mill for Hardened Mold Steel

Micro-size solid carbide flat end mills for accurate slots, contours and detailed mould machining. The 4-flute geometry supports stable finishing and semi-finishing across the small-diameter range.

Series Overview

Feature	Specification
Tool type	Micro flat end mill
Hardness grade	HRC55
Flutes	4
Diameter range	Ø1.1–Ø14.5 mm
Standard overall lengths	50 / 60 / 75 / 100 mm

Full Size Range

Product Model	Stock	Diameter D (mm)	Cutting Length H (mm)	Shank C (mm)	Overall Length L (mm)	Flutes
D1.1×3.3×D4×50L×4F	●	D1.1	3.3	D4	50	4
D1.2×3.6×D4×50L×4F	●	D1.2	3.6	D4	50	4
D1.3×3.9×D4×50L×4F	●	D1.3	3.9	D4	50	4
D1.4×4.2×D4×50L×4F	●	D1.4	4.2	D4	50	4
D1.6×4.8×D4×50L×4F	●	D1.6	4.8	D4	50	4
D1.7×5.1×D4×50L×4F	●	D1.7	5.1	D4	50	4
D1.8×5.4×D4×50L×4F	●	D1.8	5.4	D4	50	4
D1.9×5.7×D4×50L×4F	●	D1.9	5.7	D4	50	4
D2.1×6.3×D4×50L×4F	●	D2.1	6.3	D4	50	4
D2.2×6.6×D4×50L×4F	●	D2.2	6.6	D4	50	4
D2.3×6.9×D4×50L×4F	●	D2.3	6.9	D4	50	4
D2.4×7.2×D4×50L×4F	●	D2.4	7.2	D4	50	4
D2.6×7.8×D4×50L×4F	●	D2.6	7.8	D4	50	4
D2.7×8.1×D4×50L×4F	●	D2.7	8.1	D4	50	4
D2.8×8.4×D4×50L×4F	●	D2.8	8.4	D4	50	4
D2.9×8.7×D4×50L×4F	●	D2.9	8.7	D4	50	4
D3.1×9.3×D4×50L×4F	●	D3.1	9.3	D4	50	4
D3.2×9.6×D4×50L×4F	●	D3.2	9.6	D4	50	4
D3.3×9.9×D4×50L×4F	●	D3.3	9.9	D4	50	4
D3.4×10×D4×50L×4F	●	D3.4	10	D4	50	4
D3.6×10×D4×50L×4F	●	D3.6	10	D4	50	4
D3.7×10×D4×50L×4F	●	D3.7	10	D4	50	4
D3.8×10×D4×50L×4F	●	D3.8	10	D4	50	4
D3.9×12×D4×50L×4F	●	D3.9	12	D4	50	4
D4.1×12×D6×50L×4F	●	D4.1	12	D6	50	4
D4.2×12×D6×50L×4F	●	D4.2	12	D6	50	4
D4.3×12×D6×50L×4F	●	D4.3	12	D6	50	4
D4.4×13×D6×50L×4F	●	D4.4	13	D6	50	4
D4.5×13×D6×50L×4F	●	D4.5	13	D6	50	4
D4.6×13×D6×50L×4F	●	D4.6	13	D6	50	4
D4.7×14×D6×50L×4F	●	D4.7	14	D6	50	4
D4.8×14×D6×50L×4F	●	D4.8	14	D6	50	4
D4.9×14×D6×50L×4F	●	D4.9	14	D6	50	4
D5.1×15×D6×50L×4F	●	D5.1	15	D6	50	4
D5.2×15×D6×50L×4F	●	D5.2	15	D6	50	4
D5.3×15×D6×50L×4F	●	D5.3	15	D6	50	4
D5.4×16×D6×50L×4F	●	D5.4	16	D6	50	4
D5.5×16×D6×50L×4F	●	D5.5	16	D6	50	4
D5.6×16×D6×50L×4F	●	D5.6	16	D6	50	4
D5.7×16×D6×50L×4F	●	D5.7	16	D6	50	4
D5.8×17×D6×50L×4F	●	D5.8	17	D6	50	4
D5.9×17×D6×50L×4F	●	D5.9	17	D6	50	4
D6.1×18×D8×60L×4F	●	D6.1	18	D8	60	4
D6.2×18×D8×60L×4F	●	D6.2	18	D8	60	4
D6.3×18×D8×60L×4F	●	D6.3	18	D8	60	4
D6.4×19×D8×60L×4F	●	D6.4	19	D8	60	4
D6.5×19×D8×60L×4F	●	D6.5	19	D8	60	4
D6.6×19×D8×60L×4F	●	D6.6	19	D8	60	4
D6.7×20×D8×60L×4F	●	D6.7	20	D8	60	4
D6.8×20×D8×60L×4F	●	D6.8	20	D8	60	4
D6.9×20×D8×60L×4F	●	D6.9	20	D8	60	4
D7.1×21×D8×60L×4F	●	D7.1	21	D8	60	4
D7.2×21×D8×60L×4F	●	D7.2	21	D8	60	4
D7.3×21×D8×60L×4F	●	D7.3	21	D8	60	4
D7.4×22×D8×60L×4F	●	D7.4	22	D8	60	4
D7.5×22×D8×60L×4F	●	D7.5	22	D8	60	4
D7.6×22×D8×60L×4F	●	D7.6	22	D8	60	4
D7.7×23×D8×60L×4F	●	D7.7	23	D8	60	4
D7.8×23×D8×60L×4F	●	D7.8	23	D8	60	4
D7.9×23×D8×60L×4F	●	D7.9	23	D8	60	4
D8.1×24×D10×75L×4F	●	D8.1	24	D10	75	4
D8.2×24×D10×75L×4F	●	D8.2	24	D10	75	4
D8.3×24×D10×75L×4F	●	D8.3	24	D10	75	4
D8.4×25×D10×75L×4F	●	D8.4	25	D10	75	4
D8.5×25×D10×75L×4F	●	D8.5	25	D10	75	4
D8.6×25×D10×75L×4F	●	D8.6	25	D10	75	4
D8.7×26×D10×75L×4F	●	D8.7	26	D10	75	4
D8.8×26×D10×75L×4F	●	D8.8	26	D10	75	4
D8.9×26×D10×75L×4F	●	D8.9	26	D10	75	4
D9.1×27×D10×75L×4F	●	D9.1	27	D10	75	4
D9.2×27×D10×75L×4F	●	D9.2	27	D10	75	4
D9.3×27×D10×75L×4F	●	D9.3	27	D10	75	4
D9.4×27×D10×75L×4F	●	D9.4	27	D10	75	4
D9.5×28×D10×75L×4F	●	D9.5	28	D10	75	4
D9.6×28×D10×75L×4F	●	D9.6	28	D10	75	4
D9.7×28×D10×75L×4F	●	D9.7	28	D10	75	4
D9.8×29×D10×75L×4F	●	D9.8	29	D10	75	4
D9.9×29×D10×75L×4F	●	D9.9	29	D10	75	4
D10.1×30×D12×75L×4F	●	D10.1	30	D12	75	4
D10.2×30×D12×75L×4F	●	D10.2	30	D12	75	4
D10.3×30×D12×75L×4F	●	D10.3	30	D12	75	4
D10.4×30×D12×75L×4F	●	D10.4	30	D12	75	4
D10.5×31×D12×75L×4F	●	D10.5	31	D12	75	4
D10.6×31×D12×75L×4F	●	D10.6	31	D12	75	4
D10.7×31×D12×75L×4F	●	D10.7	31	D12	75	4
D10.8×31×D12×75L×4F	●	D10.8	31	D12	75	4
D10.9×32×D12×75L×4F	●	D10.9	32	D12	75	4
D11.1×32×D12×75L×4F	●	D11.1	32	D12	75	4
D11.2×32×D12×75L×4F	●	D11.2	32	D12	75	4
D11.3×32×D12×75L×4F	●	D11.3	32	D12	75	4
D11.4×32×D12×75L×4F	●	D11.4	32	D12	75	4
D11.5×33×D12×75L×4F	●	D11.5	33	D12	75	4
D11.6×33×D12×75L×4F	●	D11.6	33	D12	75	4
D11.7×33×D12×75L×4F	●	D11.7	33	D12	75	4
D11.8×33×D12×75L×4F	●	D11.8	33	D12	75	4
D11.9×33×D12×75L×4F	●	D11.9	33	D12	75	4
D12.5×40×D14×100L×4F	●	D12.5	40	D14	100	4
D13.5×40×D14×100L×4F	●	D13.5	40	D14	100	4
D14.5×45×D16×100L×4F	●	D14.5	45	D16	100	4

Carbide grade, geometry and interface

Use the published series geometry and request any unlisted metallurgy or quality value from BOFA before production.

Engineering field	Published value / required confirmation
Substrate	Solid carbide; exact grade code to be confirmed on the BOFA datasheet.
Grain size	Not in the current chart; request the series or batch datasheet.
Cobalt content	Not in the current chart; request the series or batch datasheet.
Coating	Coating family and thickness are not in the current chart; confirm for the material and diameter.
Helix angle	Not published in the current micro chart; confirm on the datasheet.
Workpiece material	Fine mould/profile work and small-feature machining; confirm the exact material grade, hardness and required finish.
Diameter / length tolerance	Not published in the current chart; specify the required tolerance in the RFQ.
Tool-tip runout	Not published in the current chart; specify the measurement position and target runout.
Shank / machine interface	State shank diameter, spindle taper, holder type and gauge length.
Insert model match	Not applicable: solid-carbide end mill with no replaceable insert.

Frequently asked questions

How do I choose a micro flat end mill diameter?

Choose the smallest diameter that clears the feature while keeping the shortest safe reach. Confirm diameter, cutting length, shank, overall length and holder runout against the drawing.

Which workpiece materials can I machine?

What carbide grade, grain size, cobalt content and coating are supplied?

Those values are not in the current product chart. Request the BOFA series or batch datasheet and do not assume a grade, cobalt percentage or coating family that has not been confirmed.

How should I choose spindle speed, feed and depth of cut?

Provide diameter or radius, material and hardness, flute count, overhang, holder, operation, coolant and target finish. BOFA can then return rpm, feed per tooth, table feed, axial depth and radial engagement for the setup.

Which holder and machine interface are required?

State the spindle taper, holder type, gauge length and target tool-tip runout. The shank must match the holder, and the shortest safe overhang should be used for a stable cut.

What tolerance and runout data should be specified?

State the diameter/length tolerance, measurement position and tool-tip runout target in the RFQ. The current chart does not publish guaranteed values, so BOFA will confirm them before quotation.

Technical RFQ — model and size pre-filled

Each linked size row opens the RFQ with the exact model and dimensions. Include material, hardness, rpm, feed, ap/ae, coolant, holder interface, tolerance, runout, quantity and drawing.

Open the pre-filled technical RFQ →

Carbide HRC55 Micro Ball Nose End Mill for Hardened Mold Steel | BOFA Manufacturer

Carbide HRC55 Micro Ball Nose End Mill for Hardened Mold Steel

Micro-size solid carbide ball nose end mills for fine milling, profiling and detailed mould machining. The 2-flute design supports side milling and face milling, while the precision-ground cutting edge is designed for a clean finish.

Series Overview

Feature	Specification
Tool type	Micro ball nose end mill
Hardness grade	HRC55
Flutes	2
Ball radius range	R0.55–R5.95 mm
Standard overall lengths	50 / 60 / 75 mm

Application and process data

Cutting values are setup-dependent. Use the fields below to request a condition card rather than applying a generic speed or feed.

Decision field	Published value or required input	Status
Workpiece material	State the exact grade: mould steel, carbon/alloy steel, stainless steel, cast iron or aluminium.	Required
Workpiece hardness	Provide measured hardness in HRC or HB. HRC55 is the BOFA series grade, not a verified workpiece limit.	Confirm before quotation
Spindle speed	Provide target cutting speed or current rpm; BOFA will return recommended rpm for the selected radius and material.	Condition-card value
Feed	Provide feed units and operation; BOFA will return feed per tooth (fz) and table feed (Vf) for this 2-flute tool.	Condition-card value
Depth of cut	Provide axial depth (ap), radial engagement (ae), and roughing or finishing operation.	Condition-card value
Maximum machining depth	No separate maximum is published. Cutting length H is a geometry reference, not an automatic safe depth.	Confirm with BOFA
Cooling	State dry, air blast, MQL or flood coolant and available pressure/flow.	Required for recommendation
Machine interface	Solid-carbide shank sizes C = D4, D6, D8, D10 or D12 are listed. State spindle taper, holder type and gauge length.	Required for compatibility
Runout / tolerance	Not published in the current chart. State required tool-tip runout and diameter/length tolerance; BOFA will confirm achievable values.	Confirm before ordering
Insert model / match	Not applicable: this is a solid-carbide 2-flute end mill with no replaceable insert.	Fixed geometry

RFQ technical fields

Include: series, ball radius R, cutting length H, shank C, overall length L, material and hardness, operation, rpm or cutting speed, feed units, ap/ae, coolant, spindle/holder interface, runout or tolerance target, quantity, delivery date, and a drawing or workpiece photo.

Carbide grade, geometry and interface

Publish only values confirmed by the BOFA series datasheet or quotation. The fields below make the decision variables machine-readable without inventing unverified cutting data.

Engineering field	Current published value / required confirmation
Substrate	Solid micro-grain carbide; exact grade code to be confirmed by BOFA.
Grain size	Not in the current chart; request the batch/series datasheet.
Cobalt content	Not in the current chart; request the batch/series datasheet.
Coating	Coating family and thickness are not in the current chart; confirm for the material and diameter.
Helix angle	Not published for this micro series; confirm on the drawing/datasheet.
Diameter / length tolerance	Not published in the current chart; specify the required tolerance in the RFQ.
Tool-tip runout	Not published in the current chart; specify the measurement position and target runout.
Shank / machine interface	C=D4, D6, D8, D10 or D12 mm. State spindle taper, holder and gauge length.
Insert model match	Not applicable: solid-carbide 2-flute construction with no replaceable insert.

Frequently asked questions

Does this tool use an insert?

No. The HRC55 micro ball nose is a solid-carbide, 2-flute end mill. There is no replaceable insert or insert-grade matching step.

Can cutting length H be used as the maximum machining depth?

No. H is a geometry reference, not an automatic safe depth. Overhang, holder runout, workpiece hardness, radial engagement and toolpath load must be checked before setting axial depth.

Which materials is the HRC55 micro ball nose end mill intended for?

The published application is fine milling and mould/profile work. Send the exact workpiece grade—such as mould steel, carbon/alloy steel, stainless steel, cast iron or aluminium—and its measured hardness so BOFA can confirm the tool and cutting condition.

Does HRC55 mean the workpiece can always be cut at 55 HRC?

No. HRC55 is the BOFA series designation, not a universal workpiece limit. The allowable hardness depends on the material, heat treatment, tool diameter, overhang and operation; request a condition card for the selected model.

What carbide grade, grain size, cobalt content and coating are supplied?

The current size chart does not publish a grade code, grain-size value, cobalt percentage or coating family. These are batch/series data and must be confirmed on the BOFA datasheet or quotation before ordering; no unverified value is assumed here.

How are spindle speed, feed and depth of cut selected?

They are condition-card values, not one generic table. Provide material and hardness, ball radius, tool diameter, overhang, holder, operation, coolant, target surface finish and current rpm/feed units; BOFA will return recommended rpm, feed per tooth, table feed, ap and ae.

Which machine interface and holder should I use?

The listed solid-carbide shanks are C=D4, D6, D8, D10 and D12 mm. State the spindle taper, holder type and gauge length; use a rigid precision holder and provide the runout target so compatibility can be checked.

How do I choose the ball radius and overall length?

Choose a radius no larger than the smallest concave feature that must be finished, then choose H, C and L for the required reach with the shortest safe overhang. Use the linked size-row RFQ to send the exact R×H×C×L×2F model.

Technical RFQ — model and size pre-filled

Use a linked size row below to open the RFQ with the exact R×H×C×L×2F model. The embedded form also accepts material, hardness, rpm, feed, ap/ae, coolant, holder interface, runout, tolerance, quantity and drawings.

Open the technical RFQ in a new page →

Full Size Range

Product Model	Stock	Ball Radius R (mm)	Cutting Length H (mm)	Shank C (mm)	Overall Length L (mm)	Flutes
R0.55×2.2×D4×50L×2F	●	R0.55	2.2	D4	50	2
R0.6×2.4×D4×50L×2F	●	R0.6	2.4	D4	50	2
R0.65×2.6×D4×50L×2F	●	R0.65	2.6	D4	50	2
R0.7×2.8×D4×50L×2F	●	R0.7	2.8	D4	50	2
R0.8×3.2×D4×50L×2F	●	R0.8	3.2	D4	50	2
R0.85×3.4×D4×50L×2F	●	R0.85	3.4	D4	50	2
R0.9×3.6×D4×50L×2F	●	R0.9	3.6	D4	50	2
R0.95×3.8×D4×50L×2F	●	R0.95	3.8	D4	50	2
R1.05×4.2×D4×50L×2F	●	R1.05	4.2	D4	50	2
R1.1×4.4×D4×50L×2F	●	R1.1	4.4	D4	50	2
R1.15×4.6×D4×50L×2F	●	R1.15	4.6	D4	50	2
R1.2×4.8×D4×50L×2F	●	R1.2	4.8	D4	50	2
R1.3×5.2×D4×50L×2F	●	R1.3	5.2	D4	50	2
R1.35×5.4×D4×50L×2F	●	R1.35	5.4	D4	50	2
R1.4×5.6×D4×50L×2F	●	R1.4	5.6	D4	50	2
R1.45×5.8×D4×50L×2F	●	R1.45	5.8	D4	50	2
R1.55×6.2×D4×50L×2F	●	R1.55	6.2	D4	50	2
R1.6×6.4×D4×50L×2F	●	R1.6	6.4	D4	50	2
R1.65×6.6×D4×50L×2F	●	R1.65	6.6	D4	50	2
R1.7×6.8×D4×50L×2F	●	R1.7	6.8	D4	50	2
R1.8×7.2×D4×50L×2F	●	R1.8	7.2	D4	50	2
R1.85×7.4×D4×50L×2F	●	R1.85	7.4	D4	50	2
R1.9×7.6×D4×50L×2F	●	R1.9	7.6	D4	50	2
R1.95×7.8×D4×50L×2F	●	R1.95	7.8	D4	50	2
R2.05×8.2×D6×50L×2F	●	R2.05	8.2	D6	50	2
R2.1×8.4×D6×50L×2F	●	R2.1	8.4	D6	50	2
R2.15×8.6×D6×50L×2F	●	R2.15	8.6	D6	50	2
R2.2×8.8×D6×50L×2F	●	R2.2	8.8	D6	50	2
R2.25×9×D6×50L×2F	●	R2.25	9	D6	50	2
R2.3×9.2×D6×50L×2F	●	R2.3	9.2	D6	50	2
R2.35×9.4×D6×50L×2F	●	R2.35	9.4	D6	50	2
R2.4×9.6×D6×50L×2F	●	R2.4	9.6	D6	50	2
R2.45×9.8×D6×50L×2F	●	R2.45	9.8	D6	50	2
R2.55×10×D6×50L×2F	●	R2.55	10	D6	50	2
R2.6×10.4×D6×50L×2F	●	R2.6	10.4	D6	50	2
R2.65×10.6×D6×50L×2F	●	R2.65	10.6	D6	50	2
R2.7×10.8×D6×50L×2F	●	R2.7	10.8	D6	50	2
R2.75×11×D6×50L×2F	●	R2.75	11	D6	50	2
R2.8×11.2×D6×50L×2F	●	R2.8	11.2	D6	50	2
R2.85×11.4×D6×50L×2F	●	R2.85	11.4	D6	50	2
R2.9×11.6×D6×50L×2F	●	R2.9	11.6	D6	50	2
R2.95×11.8×D6×50L×2F	●	R2.95	11.8	D6	50	2
R3.05×12.2×D8×60L×2F	●	R3.05	12.2	D8	60	2
R3.1×12.4×D8×60L×2F	●	R3.1	12.4	D8	60	2
R3.15×12.6×D8×60L×2F	●	R3.15	12.6	D8	60	2
R3.2×12.8×D8×60L×2F	●	R3.2	12.8	D8	60	2
R3.25×13×D8×60L×2F	●	R3.25	13	D8	60	2
R3.3×13.2×D8×60L×2F	●	R3.3	13.2	D8	60	2
R3.35×13.4×D8×60L×2F	●	R3.35	13.4	D8	60	2
R3.4×13.6×D8×60L×2F	●	R3.4	13.6	D8	60	2
R3.45×13.8×D8×60L×2F	●	R3.45	13.8	D8	60	2
R3.55×14.2×D8×60L×2F	●	R3.55	14.2	D8	60	2
R3.6×14.4×D8×60L×2F	●	R3.6	14.4	D8	60	2
R3.65×14.6×D8×60L×2F	●	R3.65	14.6	D8	60	2
R3.7×14.8×D8×60L×2F	●	R3.7	14.8	D8	60	2
R3.75×15×D8×60L×2F	●	R3.75	15	D8	60	2
R3.8×15.2×D8×60L×2F	●	R3.8	15.2	D8	60	2
R3.85×15.4×D8×60L×2F	●	R3.85	15.4	D8	60	2
R3.9×15.6×D8×60L×2F	●	R3.9	15.6	D8	60	2
R3.95×15.8×D8×60L×2F	●	R3.95	15.8	D8	60	2
R4.05×16.2×D10×75L×2F	●	R4.05	16.2	D10	75	2
R4.1×16.4×D10×75L×2F	●	R4.1	16.4	D10	75	2
R4.15×16.6×D10×75L×2F	●	R4.15	16.6	D10	75	2
R4.2×16.8×D10×75L×2F	●	R4.2	16.8	D10	75	2
R4.25×17×D10×75L×2F	●	R4.25	17	D10	75	2
R4.3×17.2×D10×75L×2F	●	R4.3	17.2	D10	75	2
R4.35×17.4×D10×75L×2F	●	R4.35	17.4	D10	75	2
R4.4×17.6×D10×75L×2F	●	R4.4	17.6	D10	75	2
R4.45×17.8×D10×75L×2F	●	R4.45	17.8	D10	75	2
R4.55×18.2×D10×75L×2F	●	R4.55	18.2	D10	75	2
R4.6×18.4×D10×75L×2F	●	R4.6	18.4	D10	75	2
R4.65×18.6×D10×75L×2F	●	R4.65	18.6	D10	75	2
R4.7×18.8×D10×75L×2F	●	R4.7	18.8	D10	75	2
R4.75×19×D10×75L×2F	●	R4.75	19	D10	75	2
R4.8×19.2×D10×75L×2F	●	R4.8	19.2	D10	75	2
R4.85×19.4×D10×75L×2F	●	R4.85	19.4	D10	75	2
R4.9×19.6×D10×75L×2F	●	R4.9	19.6	D10	75	2
R4.95×19.8×D10×75L×2F	●	R4.95	19.8	D10	75	2
R5.05×20.2×D12×75L×2F	●	R5.05	20.2	D12	75	2
R5.1×20.4×D12×75L×2F	●	R5.1	20.4	D12	75	2
R5.15×20.6×D12×75L×2F	●	R5.15	20.6	D12	75	2
R5.2×20.8×D12×75L×2F	●	R5.2	20.8	D12	75	2
R5.25×21×D12×75L×2F	●	R5.25	21	D12	75	2
R5.3×21.2×D12×75L×2F	●	R5.3	21.2	D12	75	2
R5.35×21.4×D12×75L×2F	●	R5.35	21.4	D12	75	2
R5.4×21.6×D12×75L×2F	●	R5.4	21.6	D12	75	2
R5.45×21.8×D12×75L×2F	●	R5.45	21.8	D12	75	2
R5.55×22.2×D12×75L×2F	●	R5.55	22.2	D12	75	2
R5.6×22.4×D12×75L×2F	●	R5.6	22.4	D12	75	2
R5.65×22.6×D12×75L×2F	●	R5.65	22.6	D12	75	2
R5.7×22.8×D12×75L×2F	●	R5.7	22.8	D12	75	2
R5.75×23×D12×75L×2F	●	R5.75	23	D12	75	2
R5.8×23.2×D12×75L×2F	●	R5.8	23.2	D12	75	2
R5.85×23.4×D12×75L×2F	●	R5.85	23.4	D12	75	2
R5.9×23.6×D12×75L×2F	●	R5.9	23.6	D12	75	2
R5.95×23.8×D12×75L×2F	●	R5.95	23.8	D12	75	2

Carbide HRC55 4-Flute Corner Radius End Mill for Hardened Mold Steel | BOFA Manufacturer

Carbide HRC55 4-Flute Corner Radius End Mill for Hardened Mold Steel

Solid carbide corner radius end mills with HRC55 performance, 4 flutes and a 55° helix. Suitable for stable machining of steels, alloy steels and mould materials.

Specifications

Product Model	Diameter D (mm)	Corner Radius R (mm)	Cutting Length H (mm)	Shank C (mm)	Overall Length L (mm)	Flutes	Helix Angle
D3R0.5×9×D3×50L×4F	3	0.5	9	3	50	4	55°
D3R1×9×D3×50L×4F	3	1	9	3	50	4	55°
D4R0.5×10×D4×50L×4F	4	0.5	10	4	50	4	55°
D4R0.5×14×D4×75L×4F	4	0.5	14	4	75	4	55°
D4R0.5×15×D4×100L×4F	4	0.5	15	4	100	4	55°
D4R1×10×D4×50L×4F	4	1	10	4	50	4	55°
D4R1×14×D4×75L×4F	4	1	14	4	75	4	55°
D4R1×15×D4×100L×4F	4	1	15	4	100	4	55°
D5R0.5×13×D6×50L×4F	5	0.5	13	6	50	4	55°
D5R1×13×D6×50L×4F	5	1	13	6	50	4	55°
D6R0.5×15×D6×75L×4F	6	0.5	15	6	75	4	55°
D6R0.5×20×D6×100L×4F	6	0.5	20	6	100	4	55°
D6R0.5×25×D6×100L×4F	6	0.5	25	6	100	4	55°
D6R1×15×D6×75L×4F	6	1	15	6	75	4	55°
D6R1×15×D6×100L×4F	6	1	15	6	100	4	55°
D6R1×20×D6×75L×4F	6	1	20	6	75	4	55°
D6R1×25×D6×100L×4F	6	1	25	6	100	4	55°
D8R0.5×20×D8×60L×4F	8	0.5	20	8	60	4	55°
D8R0.5×25×D8×75L×4F	8	0.5	25	8	75	4	55°
D8R0.5×30×D8×100L×4F	8	0.5	30	8	100	4	55°
D8R1×20×D8×60L×4F	8	1	20	8	60	4	55°
D8R1×25×D8×75L×4F	8	1	25	8	75	4	55°
D8R1×30×D8×100L×4F	8	1	30	8	100	4	55°
D10R0.5×25×D10×75L×4F	10	0.5	25	10	75	4	55°
D10R0.5×30×D10×100L×4F	10	0.5	30	10	100	4	55°
D10R1×25×D10×75L×4F	10	1	25	10	75	4	55°
D10R1×30×D10×100L×4F	10	1	30	10	100	4	55°
D12R0.5×35×D12×75L×4F	12	0.5	35	12	75	4	55°
D12R0.5×35×D12×100L×4F	12	0.5	35	12	100	4	55°
D12R1×30×D12×75L×4F	12	1	30	12	75	4	55°
D12R1×35×D12×100L×4F	12	1	35	12	100	4	55°

Carbide grade, geometry and interface

Use the published series geometry and request any unlisted metallurgy or quality value from BOFA before production.

Engineering field	Published value / required confirmation
Substrate	Solid carbide; exact grade code to be confirmed on the BOFA datasheet.
Grain size	Not in the current chart; request the series or batch datasheet.
Cobalt content	Not in the current chart; request the series or batch datasheet.
Coating	Coating family and thickness are not in the current chart; confirm for the material and diameter.
Helix angle	55° (published for this series)
Workpiece material	Steel, alloy steel and mould-material applications; confirm the exact grade and measured hardness before cutting.
Diameter / length tolerance	Not published in the current chart; specify the required tolerance in the RFQ.
Tool-tip runout	Not published in the current chart; specify the measurement position and target runout.
Shank / machine interface	State shank diameter, spindle taper, holder type and gauge length.
Insert model match	Not applicable: solid-carbide end mill with no replaceable insert.

Frequently asked questions

When should I choose a corner-radius end mill?

Choose a corner-radius end mill when a supported cutting edge is preferred for shoulders, profiles or roughing-to-finishing transitions. Select the corner radius from the drawing.

Which workpiece materials can I machine?

What carbide grade, grain size, cobalt content and coating are supplied?

Those values are not in the current product chart. Request the BOFA series or batch datasheet and do not assume a grade, cobalt percentage or coating family that has not been confirmed.

How should I choose spindle speed, feed and depth of cut?

Which holder and machine interface are required?

State the spindle taper, holder type, gauge length and target tool-tip runout. The shank must match the holder, and the shortest safe overhang should be used for a stable cut.

What tolerance and runout data should be specified?

State the diameter/length tolerance, measurement position and tool-tip runout target in the RFQ. The current chart does not publish guaranteed values, so BOFA will confirm them before quotation.

Technical RFQ — model and size pre-filled

Each linked size row opens the RFQ with the exact model and dimensions. Include material, hardness, rpm, feed, ap/ae, coolant, holder interface, tolerance, runout, quantity and drawing.

Open the pre-filled technical RFQ →

Carbide HRC55 2-Flute Ball Nose End Mill for Hardened Mold Steel | BOFA Manufacturer

Carbide HRC55 2-Flute Ball Nose End Mill for Hardened Mold Steel

BOFA HRC55 ball nose end mills feature a 2-flute cutting design and 55° helix angle for precision milling. This series covers practical ball radii from R0.5 to R10.

Key configuration options

HRC55 ball nose end mill series
2-flute design with 55° helix angle
Ball radius range: R0.5–R10
Multiple cutting lengths and overall lengths

Standard specifications

Product Model	Ball Radius R (mm)	Cutting Length H (mm)	Shank C (mm)	Overall Length L (mm)	Flutes	Helix Angle
R0.52D450L2F	R0.5	2	4	50	2	55°
R0.753D450L2F	R0.75	3	4	50	2	55°
R14D450L2F	R1	4	4	50	2	55°
R1.256D450L2F	R1.25	6	4	50	2	55°
R1.56D350L2F	R1.5	6	3	50	2	55°
R1.56D375L2F	R1.5	6	3	75	2	55°
R1.56D3100L2F	R1.5	6	3	100	2	55°
R1.56D450L2F	R1.5	6	4	50	2	55°
R1.757D450L2F	R1.75	7	4	50	2	55°
R28D450L2F	R2	8	4	50	2	55°
R28D475L2F	R2	8	4	75	2	55°
R28D4100L2F	R2	8	4	100	2	55°
R2.510D550L2F	R2.5	10	5	50	2	55°
R2.510D575L2F	R2.5	10	5	75	2	55°
R2.510D5100L2F	R2.5	10	5	100	2	55°
R2.510D650L2F	R2.5	10	6	50	2	55°
R312D650L2F	R3	12	6	50	2	55°
R312D675L2F	R3	12	6	75	2	55°
R312D6100L2F	R3	12	6	100	2	55°
R312D6150L2F	R3	12	6	150	2	55°
R416D860L2F	R4	16	8	60	2	55°
R416D875L2F	R4	16	8	75	2	55°
R416D8100L2F	R4	16	8	100	2	55°
R416D8150L2F	R4	16	8	150	2	55°
R520D1075L2F	R5	20	10	75	2	55°
R520D10100L2F	R5	20	10	100	2	55°
R520D10150L2F	R5	20	10	150	2	55°
R624D1275L2F	R6	24	12	75	2	55°
R624D12100L2F	R6	24	12	100	2	55°
R624D12150L2F	R6	24	12	150	2	55°
R728D14100L2F	R7	28	14	100	2	55°
R728D14150L2F	R7	28	14	150	2	55°
R832D16100L2F	R8	32	16	100	2	55°
R832D16150L2F	R8	32	16	150	2	55°
R936D18100L2F	R9	36	18	100	2	55°
R936D18150L2F	R9	36	18	150	2	55°
R1040D20100L2F	R10	40	20	100	2	55°
R1040D20150L2F	R10	40	20	150	2	55°

Important: Please confirm the final size, workpiece material and cutting application with BOFA before ordering.

Carbide grade, geometry and interface

Use the published series geometry and request any unlisted metallurgy or quality value from BOFA before production.

Engineering field	Published value / required confirmation
Substrate	Solid carbide; exact grade code to be confirmed on the BOFA datasheet.
Grain size	Not in the current chart; request the series or batch datasheet.
Cobalt content	Not in the current chart; request the series or batch datasheet.
Coating	Coating family and thickness are not in the current chart; confirm for the material and diameter.
Helix angle	55° (published for this series)
Workpiece material	Mould steel and carbon/alloy steel applications; confirm the exact grade and measured hardness before cutting.
Diameter / length tolerance	Not published in the current chart; specify the required tolerance in the RFQ.
Tool-tip runout	Not published in the current chart; specify the measurement position and target runout.
Shank / machine interface	State shank diameter, spindle taper, holder type and gauge length.
Insert model match	Not applicable: solid-carbide end mill with no replaceable insert.

Frequently asked questions

When should I choose a ball nose end mill?

Choose a ball nose for 3D contours, mould surfaces and curved finishing. Match the ball radius to the smallest concave feature and keep the shortest safe overhang.

Which workpiece materials can I machine?

What carbide grade, grain size, cobalt content and coating are supplied?

Those values are not in the current product chart. Request the BOFA series or batch datasheet and do not assume a grade, cobalt percentage or coating family that has not been confirmed.

How should I choose spindle speed, feed and depth of cut?

Which holder and machine interface are required?

State the spindle taper, holder type, gauge length and target tool-tip runout. The shank must match the holder, and the shortest safe overhang should be used for a stable cut.

What tolerance and runout data should be specified?

State the diameter/length tolerance, measurement position and tool-tip runout target in the RFQ. The current chart does not publish guaranteed values, so BOFA will confirm them before quotation.

Technical RFQ — model and size pre-filled

Each linked size row opens the RFQ with the exact model and dimensions. Include material, hardness, rpm, feed, ap/ae, coolant, holder interface, tolerance, runout, quantity and drawing.

Open the pre-filled technical RFQ →