The Q&E expansion heads are precision engineered for accurate expansion of PEX-a tubing when used with the M12 FUEL™ UPONOR™ Q&E EXPANSION TOOL. Featuring the auto-rotation interface for MILWAUKEE® cordless Q&E expansion tools, and made from high strength steel, the chrome plated segments and black oxide ring combine durability and weather resistance. Colour coded rings make for easy size recognition and convenience.