IWISS IWS-FA PEX Pipe Crimping Tool for Crimp Jaw Sets 3/8",1/2",3/4",1" with PEX Ring Remove Tool & PEX Pipe Cutters suit Sharkbite, Watts, Apollo and All US F1807 Standards 3/8",1/2,3/4,1Pex crimp tool. !! Tools without any jaws is the 1" With Comfort Grips Minimizes User Fatigue Meet ASTM F1807 Standards Includes: Go/No-Go Crimp Gauge Tool sets used to fasten PEX pipe to brass or poly fittings using copper crimp rings