PROMAT Adapter hexagon drive 1/4 inch square drive 1/2 inch length 72 mm

12.5 mm (1/2″) external square on 6.3 mm (1/4″) hexagon head
– For driving 12.5 mm (1/2″) socket bits with a power tool (conventional cordless screwdriver) Further technical information:
– Drive: DIN 3126 – E 6.3 hexagon head