DIN 3124, chrome-vanadium, chrome-plated, polished. With traction profile.
12kt.-mm: 11.0 Length: 38.0mm Diameter: 16.4mm Depth: 10.5mm PROFILE: BI-HEXAGONAL SIZE / SIZE: 11 MM DRIVE: 1/2 INCH LENGTH: 38.0MM FOR IMPACT GUNS: NO MAGNETIC: YES PIN TO RELEASE: NO INSULATED VDE: NO