DIN 3129, ISO 2725-2. For electric and pneumatic impact wrenches. Hex., 1 ? internal square.
6 mm points: 30 diameter: 49.0 mm length: 62 mm PROFILE: HEXAGONAL SIZE / SIZE: 30 MM DRIVE: 1 INCH LENGTH: 62.0MM FOR IMPACT GUNS: YES MAGNETIC: YES PIN TO RELEASE: NO INSULATED VDE: NO