chrome vanadium curved jaw locking plier,heat treated ,drop forged ,ideal for power work carbon steel body high quality material:chrom ... ,drop forged,heat treated ,sturdy 3 rivet and welded design,ideal for heavy duty carbon steel body surface:chrome nickel plated ... ,blacking,etcsize:10",with or without cutting edgeweight:520~530guse;ideal for tightening,twisting,turning combination plier