General plant maintenance tool. Drop-forged, precision ground, alloy tool steel jaws, center-cut blades. Cuts soft, medium, or hard materials. Maximum hardness of material to be cut: Brinell 455/Rockwell C48. Lockplate keeps jaws from loosening. Toggle joints turn 50 lb hand pressure to 4000 lb cutting pressure. Screw-type adjustment realigns edges. Steel handles with rubber grips. Replacement cutterhead" 0513C. Length: 42 in.