DIN 3124, chrome vanadium, chrome-plated, polished. With traction profile.
12kt mm: 28.0 length: 47.0mm diameter: 37.5mm depth: 22.0mm PROFILE: BI-HEXAGONAL SIZE / SIZE: 28 MM DRIVE: 1/2 INCH LENGTH: 47.0MM FOR IMPACT GUNS: NO MAGNETIC: YES PIN TO RELEASE: NO INSULATED VDE: NO