Famag Brad point drill bit HSS-G 4.5 mm long Key Features: One-piece drill bit with brad point, two main cutting edges, two protruding cutting edges and a hexagonal shank for bit holder For pre-drilling and lightning-fast tool change to screw bit, drilling in all wooden materials and many plastics Good handling with cordless screwdriver. The specially smooth chip flutes enable a good chip removal. Also available as twist drill product line 2596, see twist drills and countersinks UPM: Maximum rotation speed of the cordless screwdriver: recommended 3000 rpm Specification: Outer diameter: 4.5mm Shank: C6.3 Overall length: 80mm Effective length: 55mm