Model#: DEWNDCE400D2

What are the different product conditions?

Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Dewalt DCE400D2 20V MAX 2.0 Ah Cordless Lithium-Ion 1 in. PEX Expander

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  • Dewalt DCE400D2 20V MAX 2.0 Ah Cordless Lithium-Ion 1 in. PEX Expander
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  • Due to federal regulations, this product can only be shipped within the continental US. Express delivery not available.

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Expand PEX Type-A tubing from 3/8 in. to 1 in. with the 20V MAX Cordless 1in. PEX Expander, the fastest PEX Expander on the market. It’s proudly made in the USA with global materials. An automatic rotating head helps to ensure even expansion. The bright onboard LED work light and full trigger actuation make it an excellent tool in dimy lit, tight spaces. Carry this tool conveniently around the jobsite with a dual-sided hang hook and belt hook. Rubber overmold on the handle provides an ergonomic grip to keep you comfortable all day. This tool uses DEWALT PEX Heads, and it is compatible with leading competitive PEX heads.
  • Expands 3/8 in. - 1 in. Pex Type-A tubing
  • Automatic rotating head action for even expansion
  • Full trigger actuation for use in tight spaces
  • Bright LED work light to help illuminate dark areas
  • Dual-sided hang and belt hooks for convenient storage
  • Rubber overmold for comfortable, ergonomic grip
  • (2) 20V MAX 2.0 Ah Lithium-Ion Battery - DCB203
  • (3) Expander Heads
  • PEX Expander Grease
  • Kit Box
  • Charger
Compliance and Restrictions
warning: This product can expose you to Lead, which is known to the State of California to cause Cancer and Birth Defect/Reproductive Harm. For more information go to


Cordless: Yes
Length: 18.06 in.
Width: 4.88 in.
Height: 12.63 in.
Weight: 11.8 lbs.
Amp Hour: 2 Ah
AutoRotation: Yes
Batteries Included: 2
Battery System: 20V MAX
Battery Type: Li-Ion
Battery Warranty: 3 Year
Bluetooth Compatibility: No
CSA Safety: Yes
Capacity: 3/8 in - 1 in
Case Included: Yes
Case Type: Hard
Charger Included: Yes
ETL Safety: No
Expander Mechanism: Pex
Head Compatibility: Milwaukee and Uponor Heads
Heads Included: 3
LED Light: Yes
Motor Type: Brushed
Powered Tool Power Source: Electric-Cordless
Speed: 60 SPM
UL Safety: No
Voltage: 20V
Wifi compatibility: No



5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (1)
Easy To Use (1)
Powerful (1)
Value (1)
Battery Longevity (if applicable) (1)
Quality tool at a great price
Our new home is fully plumbed with ProPex tubing using expansion type connections and came pre-plumbed with a water softener loop and stub-outs for a utility sink in the garage. As an advanced DIY'er, I wanted to install a water softener and utility sink myself. Although I'd never worked with ProPex tubing before, it was clear after a little research that the expansion fittings are far superior to the push to fit connections. I was able to purchase this tool for less than I would've paid to hire a contractor to do the job, and now I have it for future use. The tool operates very smoothly, and I am amazed at the speed at which I can make a connection. It's certainly faster than PVC solvent welds and copper sweat connections. Another big plus for me is being able to use the same batteries that power all of my other DeWalt portable tools.
July 16, 2019
Originally posted at
Yes, I would recommend this to a friend
Easy To Use
Battery Longevity (if applicable)
Solid tool
Gets the job done with plenty of power.
September 8, 2018
1 year ago
Describe Yourself:
Avid Do-it-Yourselfer

Questions & Answers

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Browse 1 question Browse 1 question and 2 answers
what size are the 3 heads?
len b on Sep 8, 2018
BEST ANSWER: The kit will include (3) Expander Heads (1/2 in.., 3/4 in., 1 in.).