DEWALT DCE400B 20V MAX 1-Inch PEX Expander Tool (Tool Only)

Overview

The DEWALT DCE400B 20V MAX 1-Inch PEX Expander Tool delivers cordless versatility for expanding PEX Type-A tubing from 3/8 inch to 1 inch. Built for speed and precision, it leverages an automatic rotating head to help produce uniform expansion across the tubing walls. A bright onboard LED beam shines on the work area, aiding alignment and visibility in dim spaces, while full trigger actuation provides control in tight installations. This tool is designed to be carried between stations thanks to dual‑sided hang and belt hooks, and the rubber overmold grip keeps the handle comfortable through long sessions.

Made in the USA with global materials, the DCE400B balances rugged durability with practical design for busy job sites. It accepts DEWALT PEX Heads and remains compatible with Milwaukee and Uponor heads, offering flexibility for crews that already use those ecosystems. As a tool‑only unit, it pairs with your existing 20V MAX battery and PEX head selection to suit your workflow and project requirements.

Key capabilities

• Expands 3/8" to 1" PEX Type-A tubing for common piping runs
• Automatic rotating head promotes even expansion across walls
• Full trigger actuation enables use in restricted spaces
• Bright LED work light for visibility in basements, crawl spaces, and mechanical rooms
• Dual‑sided hang hook and belt hook for flexible storage on site
• Rubber overmold grip enhances comfort during extended use
• Uses DEWALT PEX Heads and is compatible with Milwaukee and Uponor heads

On-site practicality and use cases

• Designed to work with your existing 20V MAX battery (battery not included)
• Versatile for residential and light commercial piping projects
• Compact form factor helps in tight corridors and near fittings
• Easy transport between stations with built-in hooks

Note: This listing is for the tool only; PEX heads and batteries are not included. For best results, pair with the appropriate DEWALT PEX Heads or compatible heads and follow local installation codes.