HIGH DURABILITY: Made of heat-treated carbon steel with induction-hardened cutting edges for maximum strength and durability VERSATILE USE: Cleanly cuts copper up to 600 MCM or aluminum up to 750 MCM and multi-conductor cable. Maximum capacity is 1 3/4" (45 mm) diameter ERGONOMIC HANDLE: Ergonomically designed handle is spring-loaded for easy opening and has cushioned rubber grip for greater comfort and torque EASY OPERATION: Unique design with quick release allows cable to be easily and quickly held and cut LIFETIME USE: This tool is made for lifetime use as Jonard Tools makes high-quality tools that are designed to last for life.