Ratcheting Tight Clearance Tubing Cutters - Make square cuts in thin wall steel, copper, plastic and PVC tubing. Ratcheting action allows use in tight clearance areas. The Small Racheting Cutter (43550) cuts 1/8in. to 3/8in. diameter tubing with just 1-1/4in. required for clearance. The Larger Ratcheting Cutter (43551)cuts 5/16in. to 1-1/8in. diameter tubing withjust 2-1/4in. clearance. Made in Canada.