Exchange holder for core drill has carrier part with annular resting region for core drills of different diameters

摘要

The exchange holder (11) has a carrier part (4) with an endface-side annular resting region (9) to take core drills (10, 10', 10) with different diameters. There is a locking device which acts with the holding device (12) across the width of the resting region to keep the core drills held in the holding device in a centered position.