DIN 3129. For electric and pneumatic impact wrenches. 6 u. Extended form.
SW mm: 18.0 Length: 85.0 mm Diameter: 27.5 mm PROFILE: HEXAGONAL SIZE / SIZE: 18 MM DRIVE: 1/2 INCH LENGTH: 85.0MM FOR IMPACT GUNS: YES MAGNETIC: YES PIN TO RELEASE: NO INSULATED VDE: NO