Yellow Jacket 63331 - Alloy Ratchet Tube Bender Kit Smooth and consistent bends every time Quick change bending mandrels and shoes to rapidly move from one size tubing to the next Cutter and reamer helps prepare tubing Durable, hard plastic caseThe YELLOW JACKET Alloy Ratchet Tube Bender Kit creates smooth and consistent bends when working with 1/4 to 7/8 soft copper, aluminum and light wall hydraulic tubing. The mandrel attachment ball-detent feature and color-coded mandrels make it easy to switch between different tubing sizes. The simple, yet powerful ratcheting mechanism is easy to actuate.