• 4-Tooth socket, specially designed to remove castellated locknuts found on motorcycle swingarms.• Also suitable for some engine mounting nuts.4-Tooth socket, specially designed to remove castellated locknuts found on motorcycle swingarms. Also suitable for some engine mounting nuts.• 4-Tooth socket, specially designed to remove castellated locknuts found on motorcycle swingarms. • Also suitable for some engine mounting nuts. • Model No. SMC20Technical Specification:Nett Weight: 0.140kgExternal ø: 37mmInternal ø: 28mmInternal Socket Depth: 18.5mmNumber of Pins: 4Pin Width: 7mmPin Depth: 5mmDrive Type: 1/2"SqDimensions: Length: 50mm x Height: 50mmWeight: 0.152KgWarranty: 1 year