SERIES OVERVIEW
SPMG Indexable U Drill Inserts
BOFA SPMG square inserts are replaceable indexable inserts for compatible U drill bodies. The supplied model range provides a practical selection for different drilling diameters and maintenance requirements.
Available models
| Insert model | Compatible U drill diameter | Screw | Wrench |
|---|---|---|---|
| SPMG050204-7015 | 13-14.5 mm | M2 x 4 | T6 |
| SPMG060204-7015 | 16-21.5 mm | M2.2 x 5 | T7 |
| SPMG07T308-7015 | 22-28.5 mm | M2.2 x 6 | T8 |
| SPMG090408-7015 | 29-34.5 mm | M3.5 x 8.5 | T15 |
| SPMG110408-7015 | 24-41.5 mm | M4 x 10 | T20 |
| SPMG140512-7015 | 42-50 mm | M5 x 11 | T20 |
Selection support
Send BOFA the U drill body model, workpiece material and target diameter for compatible insert and spare-part confirmation.
ENGINEERING DATA
Selection data for a technical quotation.
Use the published chart and series attributes where available. For a safe recommendation, send the fields below; BOFA will return the matching geometry, insert and cutting-condition card for your machine.
| Decision field | What to provide or verify | BOFA quotation output |
|---|---|---|
| Published series attributes | SPMG · Square Insert · 13-50 mm U Drills · Replaceable Insert | Confirm the exact model and size chart row |
| Workpiece material and hardness | Exact grade plus measured HRC or HB; include stainless, cast iron, aluminium or mould-steel condition | Recommended grade, geometry and coating |
| Speed, feed and depth | Target RPM or cutting speed, feed units / fz / Vf, axial ap and radial ae | Condition card for the selected diameter and operation |
| Geometry and reach | Diameter or ball radius, flute count, cutting length, overall length, helix and coating | Compatible standard or custom configuration |
| Insert and interface | For indexable tools: body model, insert code, screw and wrench. For solid tools: spindle taper, shank, holder and gauge length | Compatibility check before ordering |
| Tolerance and runout | Required tool-tip runout and diameter / length tolerance | Achievable value confirmed on drawing or datasheet |
| Cooling and maximum engagement | Dry, air blast, MQL or flood coolant with pressure / flow; state required machining depth | Safe engagement guidance; do not infer a limit from cutting length alone |
PRODUCT DETAILS
Images, configurations and size charts.
