Chrome vanadium sleeves, chrome-plated, special steel blades, steel grey, for hexagon socket screws.
SW inch: 1/4 length: 52.0mm diameter: 23.0mm PROFILE: ALLEN SIZE / SIZE: INCH 1/4 DRIVE: 1/2 INCH LENGTH: 52.0MM FOR IMPACT GUNS: NO MAGNETIC: YES PIN TO RELEASE: NO INSULATED VDE: NO