The crossbow bends the following size tubes: 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8" It comes with a reamer and a tube cutter that cuts 5/8" to 1 5/8" This kit contains 1- tube cutter will cut copper/thin wall conduit ranging from 1/4" to 1 5/8" diameter 1-deburring tool cleans tubing of burrs inside and outside of tubing Will bend the following tubing sizes 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8" Dies made of molded PVC To use manually, click handle when die makes contact with tubing, you get the perfect bend in pipe Comes with plastic carrying case for storage when not in use.