The Jonard Tools RC-600 Ratcheting Cable Cutter is designed to cleanly cut copper (up to 600 MCM), aluminum (up to 750 MCM), and multi-conductor cable. It is made of heat-treated carbon steel with induction-hardened cutting edges for maximum strength and durability. The unique design allows you to hold and cut cables quickly and easily plus the handles are spring-loaded for automatic opening. The handles have a cushioned rubber grip and are ergonomically designed for greater comfort and torque. The maximum capacity for this cable cutter is 1 3/4” (45 mm) diameter. This product is not designed for use on ACSR or other steel cables. This tool is made for lifetime use as Jonard Tools makes high-quality tools that are designed to last a lifetime.