High performance drill solid carbide HA shank 12 × A11 internal cooling 4 guide chamfers 17,80

High performance drill for maximum hole quality and alignment accuracy.

Execution:
- 2 cutting edges + 4 guide bevels
- Solid carbide fine grain 10-12 % Co
- TiAlN coating
- Special grinding, tip angle 140°, side rake angle 30°
- special chip chamber geometry
- Core thickness increased, core rise normal
- with twisted cooling channels

Use:
For the highest accuracy in the diameter range, maximum alignment and position accuracy as well as coaxiality. Very smooth surface and very good chip drainage thanks to the optimized coating. Especially suitable for NC production.

A notice:
Drill pilot hole with 102736.