Chrome vanadium sleeves, chrome plated, special steel blades, steel grey, for hexagonal screws.
Inch SW: 3/16 Length: 52.0mm Diameter: 23.0mm PROFILE: ALLEN SIZE / SIZE: INCH 3/16 DRIVE: 1/2 INCH LENGTH: 52.0MM FOR IMPACT GUNS: NO MAGNETIC: YES PIN TO RELEASE: NO INSULATED VDE: NO