M12 FUEL ProPEX Expander with 1/2 in. - 1 in. RAPID SEAL Expander Heads (Tool Only), Milwaukee Tool, Mfr#: 2532-20

Cordless Expansion Tool Kit, Battery Platform M12, Maximum Compatible Tube Size 1 in, Minimum Compatible Tube Size 3/8 in, Tool Series M12 Fuel ProPEX, Cordless Tool Kit Contents Bare Tool, Battery Capacity Not Applicable, Includes Batteries No, Voltage 12 V DC, Power Source Cordless, Compatible Charger Grainger Part Number 2XKZ7, Expansion Head Sizes Included 1/2 in, 3/4 in, 1 in