12999 Manual Tube Bender Combination Set Air Conditioning Refrigeration Tools. Applicable materials Soft copper tube, soft aluminum tube, annealed hard copper tube. Die size 1/4″, 5/16″, 3/8″, 1/2″, 5/8″, 3/4″, 7/8. Containing a variety of sizes of bending mold, according to the size of the pipe to choose the bending mold, simple combination can be applied. The patented 90° angle indicator makes it easy to check the angle and bend to the desired angle. Product Description Use the forward and reverse accessories to bend the pipe in both directions to complete the operation. The bending die is made of high-strength aluminum alloy. Aluminum alloy material, can be easily loaded and unloaded pipe, so that the pipe before and after the bend, not easy to cause bending or damage.