24″ Heavy Duty Cutter, Lightweight Fiberglass Handles. Recommended for the Most Demanding Hand Cutting Applications, Heavy-Duty Straps Support the Jaws, Maximum Hardness of Material to be Cut: Brinell 455/Rockwell C48, Lock plate Keeps Jaws from Loosening. Toggle joints turn 50 lbs. hand pressure to 4000 lbs. cutting pressure, Screw-Type Adjustment Realigns Edge.