Ratchet and chain increase cutting pressure as handles open and close. Can be used effectively with short strokes in confined spaces. Increased mechanical advantage over manual cutters. Cuts hard cable, ACSR, ACAR, ZEBRA and self-supporting telephone cable. Moderate pressure needed to open and close handles. Jaw keeper prevents jaws from spreading while under heavy load. Shear-cut blades. Not recommended for cutting insulated copper or aluminium cable. NEVER use any H.K. Porter cutters on energized circuits, wire or cable.