... carbon steel,CRV etc. 2)Heat treatment HRC56-60; hand tool, hand tool set,hardware tool,Aviation snips sets,snips,aviation shear ... the thin iron sheet , Aviation Tin Snip, left, straight and right With TPR heavy duty handle Materila: Carbon steel, Cr-V ... steel Hardened and heat treated blade Size: 10" 10" hand tool hardware tool snips shear scissors