Comfortable quick fastener for a fast change of the centre drill, without setscrew.
No tool loss in the event of accidentally switched-on impact mechanism: the shortened holding slots prevent impact operation on the hammer drills with SDS-plus holder, thereby not damaging the tool.
For working with the multi-purpose hole saws Pionier"
Easy removal of the drilling core by unlocking the centre drill and pulling out the drilling core from the hole saw.
The spanner flats enable easy release of the adapter."