Counterbores H with a diameter of 50mm and larger are all made with a driving lip. These sizes should be used in the appropriate type M toolholder.

Dimensions (mm) WHV
The WHV Rotatip counterbore should always be used combined with type R or RS roller pilots. The shank of the holder must not be smaller than MT3.
D: 20-38; d: 14.0; d1: 6.0; d2min: 7.6; L: 48.0; L1: 28.0.