1/2"DR*21MM DEEP SOCKET

21mm Thorvik 112221 deep socket, 1/2" drive, 12-point Flank drive. Made from chrome-vanadium steel for excellent resistance to deformation, corrosion, and wear. The Flank drive design transmits force through the sides of the socket, not the corners, allowing work with slightly worn fasteners without causing additional damage. Specifications: Size: 21mm Square: 1/2" (12.7mm) Profile: 12-point Flank drive Type: Deep socket Material: CR-V steel Finish: Chrome polished