·1/4” Dr.: 6mm, 8mm, 10mm, 11mm, 12mm +1Punch bar.

·1/2” Dr.: 13mm, 14mm, 15mm, 17mm, 19mm, 21mm, 24mm, 27mm + 1Punch bar

·cr-mo

·This Socket Set is a tool and it is specially designed for loosening a nut which cannot be done by a socket or wrench.

·This tool is only useful for a nut with positive threads.

·This tool can be also used while a nut could not be loosen in a normal way because of rust and deformation.