General Tools 123R Mini Tubing Cutter Comfort grip design for easy one hand turning with large fluted adjusting knob for greater torque Full size bearing tool steel cutter wheel cuts copper, aluminum, brass and thin wall tubingand stainless steel Wide hardened flared grooved rollers allows true cuts close to flared end tubing to avoidtube replacement in existing installations 1/8 inch to 5/8 inch capacity Replaceable cutting wheel model # RW121/2