The Milwaukee M12 FUEL ProPEX Expander kit (2-tool) delivers the fastest 3/8 in. - 1 in. connections. Utilizing an auto-rotating head mechanism, the M12 FUEL ProPEX Expander provides even expansions for the most consistent installations. The new ProPEX Expander Heads with RAPID SEAL provide the fastest PEX seal for less down time before pressure testing. Access tight locations to install tubing with the compact, right angle design for fast and easy installations. All-metal gears and an integrated metal frame deliver maximum tool durability on the job site. The Power State Brushless Motor delivers the fastest expansions, yet runs cooler with no wearable components. The REDLITHIUM 2.0 Compact Battery Pack delivers up to 20% more power and 2X more recharges than standard lithium-ion batteries, as well as best in.-class performance in extreme jobsite conditions. REDLINK PLUS intelligence ensures optimized performance and protection from overload, overheating and over-discharge. The onboard fuel gauge helps you monitor the charge more accurately, so there’s less downtime on the job.