Cutter assembly features two-speed mechanism saves cutting time by closing the blades rapidly and shifting to normal speed to perform the cut. No more pushing on stubborn release buttons-the blades open automatically when the cutis complete. Completely new ratchet mechanism improves durability. Narrow profile permits use in deep boxes, against walls or on floors. Durable, lightweight fiberglass handles. Cutting capacity of aluminium: 795.000KCMIL (MCM) (400.000sq-mm) maximum use, 750KCMIL (MCM) (400.000sq-mm) frequent use. Cutting capacity of communication cables: 1-3/16 inch diameter maximum use. Cutting capacity of copper : 750 KCMIL (MCM) (400.000sq-mm) maximum use, 500 KCMIL (MCM) (240.000sq-mm) frequent use.