High leverage design for superior cutting ability. The curved jaws provide superior holding for a cleaner and more concentric cut. Tool is for cutting aluminum and soft copper and not for use on steel or ACSR type cables. The shear type jaws cuts up to 100-pair cables (24 AWG). Tool has built in spring and lock for safety. The lock has a unique feature where lock is released by squeezing handles together. Made of chrome vanadium steel.