Apollo PEX 69PTKH0014C 1/2-inch & 3/4-inch Combo Crimp Tool Hardened steel construction ensures reliability and durability Factory calibrated to ensure proper connections right out of the box Contoured, comfort-grip handles accommodate gloved and bare hands Smooth actuation mechanism allows secure connections with minimal force required Designed for use with 1/2 in. and 3/4 in. copper crimp rings (not included)