Adapter, outside MK 2 (inside cylindrical) with 2 clamping screws each, drilling depth 60 mm, for Kombi-Fix inside MK, outside cylindrical with hexagonal shank, for use in carpentry machines with MK 2ZB shank to accommodate cylindrical drills, for all FAMAG cylinder head drills, auger drills etc., you can use inexpensive drills with cylindrical shank in MK 2 machines with this adapter.