3/8"DR. 6PT FLANK SOCKET SIZE: 21MM

21mm Thorvik S04H3121 socket, 3/8" drive, 12-point Flank drive, short. Made from chrome-vanadium steel, offering excellent resistance to deformation, corrosion, and wear. The Flank drive design transmits force through the sides of the fastener, not the corners, allowing work with slightly worn fastening elements without causing additional damage. Specifications: Size: 21mm Drive: 3/8" (9.5mm) Profile: 12-point Flank drive Type: Short socket Material: CR-V steel Finish: Chrome polished