Milwaukee M12 ProPEX expansion tools

The Milwaukee® M12™ ProPEX® Expansion Tool features an auto-rotating head providing even expansions for the most consistent installations. A compact right-angle design allows you to install tubing in tight locations with handed operation fast and easy. The expander tool's all-metal gears and an integrated metal frame deliver maximum tool durability on the job site. The quick cam mechanism delivers precise, continuous expansion for 3/8" to 1" ProPEX® connections. Designed specifically for Uponor ProPEX®, the cordless pipe expander tool is built to deliver you with effortless installations faster than other available tools.

The kit includes the Milwaukee M12 ProPEX Expansion Tool; two M12 lithium-ion batteries; a 30-minute charger; 1/2", 3/4" and 1" expansion heads; grease; and a carrying case (3/8" and 5/8" expansion heads sold separately).

Note: All standard Uponor expander heads are compatible with the M12 and M18 tools. Uponor expander heads will not auto-rotate on the Milwaukee tools (only Milwaukee expansion heads will auto-rotate on the M12 and M18). H-heads are not compatible with Milwaukee tools and Milwaukee heads are not compatible with Uponor tools. Milwaukee heads are easily distinguished by color coding and the Milwaukee logo.

Purchase Milwaukee ProPEX expansion tools for use with Uponor systems by contacting Milwaukee at 800.729.3878 or visiting

Milwaukee M12 ProPEX expansion tools

Find a distributor

Availability of specific products varies by distributor.