VERSATILITY: Mini tube bender works on three different sizes of tubing: 1/4-inch, 5/16-inch, and 3/8-inch APPLICATION: Designed to smoothly bend copper, brass, aluminum, and other thin walled steel tubing without crimping ACCURACY: The marked degree gauge allows you to make accurate bends from 0 to 180 degrees with no guess work needed! Avoid collapsed tubing and inaccurate bends with our 3 in 1 tubing bender ABSOLUTELY SAFE: Rugged aluminum al construction with durable, baked enamel finish. Non-slip handle for safer use MULTIPLE USES: Ideal for refrigeration, climate control, oil supply, automobile, hydraulic and air pressure systems