SIR INTERNAL THREADING TOOL HOLDER
The tools utilise a shim under the insert, which sets the helix angle to match the thread being cut. The tool comes with a +1,5° shim, which covers the large majority of common threads.
| Product code nr. | Inserts |
| S20Q SIR 16 | 16 IR.. |
| S25R SIR 16 | 16 IR.. |
| S32S SIR 16 | 16 IR.. |
| S20Q SIR 22 | 22 IR.. |
| S25R SIR 22 | 22 IR.. |
| S32S SIR 22 | 22 IR.. |
| S40T SIR 22 | 22 IR.. |


