12-sided socket, 7mm across, 6.35mm drive, total length 22mm, 2405M-7, 1pc

Not only the opening (12 corners) that contacts the bolt/nut, but also the square drive part on the insertion side uses a flat drive with surface contact that transmits high torque without damaging the corners. Opposite side dimension (mm): 7 Insertion angle (mm): 6.35 Total length (mm): 22 Opposite side shape: 12-sided Diagonal (mm): 7 Material/Finish: Chrome molybdenum steel (SCM435) Country of Origin: Japan Code number: 777-3994