The M18 ProPEX expansion tool features an auto-rotating head for convenient one-handed operation. A D-handle design and integrated magnesium frame offers maximum jobsite durability, while the quick cam mechanism delivers precise, continuous expansion for 3/8 in. 1-1/2 in. ProPEX connections. Designed specifically for Uponor ProPEX, the M18 ProPEX expansion tool is built to make effortless installations faster than any other tool in the industry.