Ko-ken 12-sided socket, 40mm across, 19.0mm drive, 62mm overall length, 6405M-40, 1 pc

Catalog number: 6405M-40 Features: ●The opening (12-sided) that contacts the bolt/nut, as well as the square drive part on the insertion side, uses a surface-contact flat drive that transmits high torque without damaging the corners. Specifications: ●Face size (mm): 40 ●Drive socket size (mm): 19.0 ●Total length (mm): 62 ●Face shape: 12-sided ●Face size (mm): 40 Material/Finish: ●Chrome molybdenum steel (SCM435)