About this itemRatcheting PEX clamp cinch tool works with Qickclamp stainless steel clamps from 3/8 inch to 1 inch. Free Go/No-Go gauge included.The ratcheting mechanism creates the necessary force to secure crimp rings onto the PEX piping.Made from hardened steel for long term using.Durable tool provides immediate results to create a strong, reliable Qickclamp connection. For use with Zurn Qickclamps only.