The M12 FUEL™ ProPEX™ Expander brings a breakthrough in productivity for plumbing installers, delivering the fastest 3/8-inch to 1-inch expansions. Featuring an auto-rotating head, the expander provides you with even expansions for the most consistent installations. With ProPEX™ expansion heads with RAPID SEAL™, installers experience up to 65% faster sealing of connections as the temperature drops, reducing time with pressure testing. An extended dual-actuation trigger and a compact right-angle design ensure easy access in confined spaces. All-metal gears and an integrated metal frame provide maximum durability on the job site. The POWERSTATE™ brushless motor delivers the fastest expansions, yet runs cooler without wearable components. The REDLITHIUM™ CP2.0 battery provides up to 20% more power, 2X more recharges than standard lithium-ion batteries, and best-in-class performance in the most extreme conditions. REDLINK PLUS™ Intelligence circuitry ensures optimal performance while protecting against overload, overheating, and over-discharge. The integrated battery fuel gauge helps you accurately monitor charge to reduce downtime on the job. The MILWAUKEE™ expander is designed for UPONOR™ ProPEX™ connections to make fast potable water installations from expansion to seal.