Drill bit set and screws used for fixing, assembling and joining objects comprises a screw with a screw head having a recess and a drill bit having a tip with a protrusion which engages in the recess of the screw head

摘要

Drill bit set for producing holes and screws for screwing into the holes or into plugs inserted in the holes comprises a screw with a screw head (51) having at least one recess (61) and a drill bit having a tip with at least one protrusion which engages in the recess of the screw head and produces a torque directed in the longitudinal direction of the screw to screw the screw into the hole or into a plug inserted in the hole. Independent claims are also included for a drill bit and a screw. Preferred Features: The protrusion corresponds to the recess of the screw head. The protrusion is a cutting edge for producing the hole.