DeWalt 20V MAX* 1" Cordless Pex Expander, (Tool Kit)

The DeWalt DCE400D1 20V MAX Cordless PEX Expander Tool Kit is built for plumbers and mechanical contractors who need efficient, reliable PEX pipe installation in the field. This cordless PEX expansion tool expands 3/8" to 1" PEX-A tubing using DeWalt’s precision auto-rotating head for uniform expansions every time.

Designed for professional use, the DeWalt PEX expander tool kit includes a DCE400 expander, 1/2", 3/4", and 1" expansion heads, a 20V MAX* battery, charger, and durable kit box. The adjustable automatic rotation helps ensure consistent expansion, and the anti-slip grip adds comfort and control during extended use. This DeWalt PEX expander gives you the cordless freedom to complete expansion work on-site without needing manual tools or additional power sources.

• Auto-Rotating Expansion Head



Provides consistent 360° pipe expansion for secure, uniform PEX-A connections.




• 1" Expansion Capacity



Expands PEX-A tubing from 3/8" to 1" to cover a wide range of residential and commercial plumbing needs.




• Brushless Motor



Delivers extended runtime and tool longevity, even under demanding job site conditions.




• Cordless Design



Part of the 20V MAX system — no cords, compressors, or hand tools needed.




• Interchangeable Heads Included



Kit includes 1/2", 3/4", and 1" expansion heads for job versatility.




• Complete Tool Kit



Includes tool, battery, charger, heads, and storage case — ready to work out of the box.