Our copper tube fittings crimping tool exhibits excellent crimping capabilities, allowing for rapid completion of pipe crimping tasks. It comes with 3 copper pipe dies: 1/2", 3/4", and 1", catering to various crimping needs. Locking pin mechanism for effortless die replacement in a few seconds. | Vevor | | Copper Press Tool Tube Fittings Crimping Kit, Pro Press Crimper with 1/2", 3/4", 1" Quick Change Jaws, 360° | Black;orange | Best Buy