Gedore Hexagon Screwdriver Bit, Hex 4 Tip, 4 mm Drive, Hexagon Drive, 61 mm Overall

Hexagon Socket Screwdriver Bit

Hexagon head socket bits for use with in hex screws in place of a hexagon key, for use with 1/2in socket wrenches

Standards

DIN 7422, DIN 3120, ISO 1174.