Version:
Self-centring with 1-cutter geometry, achieves very high alignment accuracy.
Application:
Point angle 90° for spot drilling and countersinking in one operation when a drill of smaller ⌀ is used afterwards.
Note:
Use the speed for the actual hole ⌀ (not generally the speed for the drill outer ⌀).
Maintain a feed rate f = 0.015 mm/rev!