IWISS F1807 1/2"&3/4" Combo Copper Ring Crimping Tool for Pex Pipe Connection with free Copper Rings&Cutter&GO-NO-GO Gauge suits Sharkbite, Watts, Apollo and All US F1807 Standards- Portable Case Meet ASTM F1807 Combo Crimping Tool for 1/2-inch and 3/4-inch With high quality made from tool steel,come with 20PCS 1/2" and 10PCS 3/4" Copper Ring & Pex Cutter&GO NO GO Gauge Smart design help you reach into tight connection and make the pipe installation easier. Perfect polishing insure no damage for copper ring;Simply pull back on the handles to open the jaws and crimp away