MUST HAVE TOOLSET for Push-fit fittings or Push-to-Connect fittings system, includes two tools: CRQ01 removal tool and CRQ03 deburr&measure&disconnect tool CRQ01 is designed to remove 1/2 in., 3/4 in., 1 in. Push-fit fittings and Push-to-Connect fittings from the copper, CPVC, or PEX pipe in seconds, no extra interchangeable faceplates required. CRQ02 is a multi-function tool for use with 1/4 in., 3/8 in., 1/2 in., 5/8 in., 3/4 in., and 1 in. CPVC, PEX, and copper tubing. It can deburr the cut end of the pipe & bevel the cut edge, ensure complete seal and smooth connection. And you can also use it to measure proper installation depth. The two grooves on both sides can also be used against the release collar to remove the Push-fit fittings. Both tools are well constructed with wear-resisting to ensure reliable functionality and long service life.