The NIBCO® PEX compact crimp tool is used to make copper crimp ring and copper sleeve connections in sizes 3/8-inch to 3/4-inch. The crimp tool includes a go-no-go gauge to check connections and calibrate the tool when needed. The compact crimp tool is ideal for small spaces. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. NIBCO® PEX systems provide a safe, economical and energy-efficient piping alternative for water distribution, radiant floor heating, municipal water supply, geothermal climate control, snow melt and drip irrigation. NIBCO® PEX tubing, fittings, valves, and manifolds are designed to be used as a complete system, and are backed by a NIBCO INC. limited warranty.