Chrome vanadium, chrome plated, polished, American dimensions. With traction profile.
12kt. mm: 1/2 length: 38.0 mm diameter: 18.3 mm depth: 11.0 mm PROFILE: BI-HEXAGONAL SIZE / SIZE: INCH 1/2 DRIVE: 1/2 INCH LENGTH: 38.0MM FOR IMPACT GUNS: NO MAGNETIC: YES PIN TO RELEASE: NO INSULATED VDE: NO