Dormer Pramet R7131 10.40 mm CARBIDE TIALN 140 DEG CHAMFER DRILL

Meet the Dormer Pramet R7131 10.40 mm carbide drill. It blends a 140° pilot with a 90° chamfer to produce chamfered holes for standard metric threads in a single pass, helping you prep threaded holes quickly and accurately.

With a Titanium Aluminium Nitride coating, it delivers longer service life and better performance when drilling harder materials. The drill uses premium carbide and is sized with a specific pilot diameter and length to create the correct hole size and depth for standard threads, reducing the need for extra operations when drilling tapping-size holes.

• Chamfered-hole geometry: 140° pilot with a 90° chamfer lets you create the chamfered hole in one pass, ensuring the hole size and depth match standard metric threads and minimizing follow-up operations.
• TiAlN-coated carbide: The Titanium Aluminium Nitride coating extends tool life and improves performance on tougher materials, reducing tool changes and improving cut quality.
• Precisely dimensioned pilot and length: Designed to deliver the correct hole size and depth for standard threads, simplifying setup and ensuring consistent tapping results across jobs.

By combining chamfering, drilling, and thread-prep in one tool, the R7131 speeds workflows, reduces tool changes, and delivers repeatable tapping results across common metals, helping you finish projects faster with dependable performance.