These new tube cutters fromWheeler-Rex Mfg.feature a self-feeding and ratcheting action designed for fast, accurate pipe cutting in confined spaces. Place the cutter onto your pipe and begin ratcheting. The self-feeding cutter wheel will automatically tighten as you ratchet the handle back and forth. Available in two sizes for 1/2-inch and 3/4-inch mild or stainless-steel, copper, and thin wall PVC and CPVC tubing.