Jet 587818 18" Bolt CutterReplaceable red jaws and heads Designed for industrial grade cutting of soft to hard steel, bolts, buts, rods, chain etc. High grade alloy steel jaws are drop forged, heat treated and precision ground for longer cutting life Maximum hardness of material to be cut: Brinell 450 / Rockwell C-48 Steel handles are angled for maximum leverage with comfortable rubber grips Exceeds US Federal Specification No. GGG-C-740d Type II 5/16" Capacity Clipper Cut Type Jaw