TEKTON 6519 Three-Size Tubing Bender Smoothly bends copper, brass, aluminum, and thin-wall steel without crimping tubing Calibrated to bend tubing to angles up to 180 degrees Three-channel design accommodates 1/4, 5/16, and 3/8 in. O.D. tubing Rugged aluminum alloy construction with durable, baked enamel finish And since it's TEKTON, it's always guaranteed, so go ahead, Take It On