Reed's PEXOH12 is a PEX Crimper. It has a 1/2" capacity. It weighs 2.5 lbs. This crimper is used for potable water lines, radiant heat, snow melt, and ice rink systems, among other applications. The design of these PEX crimpers eliminates tool marks and distortion on the rings, and the tool crimps rings easily, making PEX installation a breeze. It includes a calibration gauge that makes it easy to verify adjustments before crimping. It has a single-handed design.