Our PEX Expander Heads are precision engineered for accurate expansion of F1960 PEX. Featuring the auto-rotation interface for MILWAUKEE® Cordless PEX Expander Tools, the heads are compatible with M12™ and M18™ Expander Tools except 2633. Made from high strength steel, the chrome-plated segments, and black oxide ring combine durability and weather resistance. For added convenience, color-coded rings allow you to identify the correct size quickly.