DIN 3124, chrome-vanadium, chrome-plated, polished. With traction profile.
12kt.-mm: 30.0 Length: 50.0mm Bore: 40.1mm Depth: 25.0mm PROFILE: BI-HEXAGONAL SIZE / SIZE: 30 MM DRIVE: 1/2 INCH LENGTH: 50.0MM FOR IMPACT GUNS: NO MAGNETIC: YES PIN TO RELEASE: NO INSULATED VDE: NO