Apollo 1/2-in to 1-in pressfast tool is made for use with pex or copper press fittings. It can be attached to any standard-impact wrench capable of 130 pounds of torque. The blue LED sensor ensures a properly sealed connection. Besides the pressfast tool, the kit includes 1/2-in, 3/4-d, 1-in press jaws; 1/2-in, 3/4-d, 1-in pex jaws; and a 3/16-in allen wrench.