Scaffolder Wrench Hot forged from 45# Carbon Steel. Precisely machined, heat-treated and black finished. Scaffolder WrenchLengthening socketMaterial: 45# Carbon Steel, or 40Cr, Cr-VColor: Black finishedSize:-in Metric10*12,10*13,12*14,13*17,14*17,17*19,17*21,19*21,19*24,21*26,21*27,22*24,24*27,24*30,27*32,32*36 Scaffolder Wrench