SERIES OVERVIEW
BT40 Side Lock Tool Holder
BT40 side lock tool holders for secure clamping of straight-shank tools. Select the bore diameter and effective length to match your machining setup.
Key configuration
| Feature | Specification |
|---|---|
| Spindle taper | BT40 |
| Holder type | Side lock, SLN series |
| Bore range P | 16 / 20 / 25 / 32 / 40 / 42 mm |
| Effective length L | 100 / 150 mm |
Standard models
| Product Model | L (mm) | L1 (mm) | Bore P (mm) |
|---|---|---|---|
| BT40-SLN16-100L | 100 | 65 | 16 |
| BT40-SLN20-100L | 100 | 65 | 20 |
| BT40-SLN20-150L | 150 | 75 | 20 |
| BT40-SLN25-100L | 100 | 65 | 25 |
| BT40-SLN25-150L | 150 | 75 | 25 |
| BT40-SLN32-100L | 100 | 65 | 32 |
| BT40-SLN32-150L | 150 | 75 | 32 |
| BT40-SLN40-100L | 100 | 70 | 40 |
| BT40-SLN40-150L | 150 | 80 | 40 |
| BT40-SLN42-100L | 100 | 70 | 42 |
| BT40-SLN42-150L | 150 | 80 | 42 |
Note: The dimensions chart is also included below in Product Details. Contact BOFA to confirm compatible accessories before ordering.
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 | BT40 Taper · SLN Series · P16-P42 · 100 / 150 mm | 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.
