The Milwaukee Propex Expansion Tool Kit is a godsend for plumbers and anyone working with plumbing and heating systems. Thanks to the built-in auto-rotate mechanism, you can work with one hand. It has a compact size with a right angle, you can reach the hardest to reach places. Works with pipe diameters from 3/8 to 1 inch and has a stroke length of 14mm. Covers most standard pipe sizes used in home systems. A nice feature of the tool is the quick cam mechanism. It provides fast and continuous expansion. All the gears are metal, and the body itself is also metal. There's a special spatula trigger, it makes it easy to operate the tool even in tight spaces. The Milwaukee Propex Expansion is specifically designed to work with Uponor ProPEX.