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DEWALT 20V MAX* PEX Expander Tool Kit, 1-Inch (DCE400D2)

4.7 out of 5 stars 514 ratings

$418.00 with 28 percent savings
List Price: $579.96
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Purchase options and add-ons

  • The cordless tools combo kit expands 3/8-inch with 1-inch Pex Type-A tubing
  • Construction tools with automatic rotating head action for even expansion
  • DEWALT tool kit comes with 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
  • Uses DEWALT PEX Heads. Compatible with Milwaukee and Uponor Heads. (Milwaukee is a registered trademark of Milwaukee Electric Tool Corp. Uponor is a registered trademark of Uponor Oyj.)

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This item: DEWALT 20V MAX* PEX Expander Tool Kit, 1-Inch (DCE400D2)
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Product Description

Expand PEX Type-A tubing from 3/8-inch to 1-inch with this 20V MAX* Cordless 1-inch 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 dimly 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. DEWALT 20 volt tools use DEWALT PEX Heads, and are compatible with leading competitive PEX heads.

Product information

Technical Details

Manufacturer ‎DEWALT
Part Number ‎DCE400D2
Item Weight ‎5 pounds
Product Dimensions ‎15 x 4 x 10 inches
Country of Origin ‎USA
Item model number ‎DCE400D2
Batteries ‎2 Lithium Ion batteries required. (included)
Is Discontinued By Manufacturer ‎No
Size ‎One Size
Color ‎Multi
Style ‎Classic
Finish ‎Brushed
Material ‎Blend
Pattern ‎Solid
Shape ‎Rectangular
Power Source ‎Cordless
Voltage ‎20 Volts
Item Package Quantity ‎1
Measurement System ‎Metric
Included Components ‎(1) DCE400 PEX Expander, (2) DCB203 BatteriesCharger, (3) Expander Heads (1/2", 3/4", 1"), PEX Expander Grease, Kit Box.
Batteries Included? ‎Yes
Batteries Required? ‎Yes
Battery Cell Type ‎Lithium Ion
Warranty Description ‎3 year limited warranty

Additional Information

ASIN B0753F9D19
Customer Reviews
4.7 out of 5 stars 514 ratings

4.7 out of 5 stars
Best Sellers Rank #22,514 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
#15 in Power Tool Combo Kits
Date First Available August 24, 2017

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Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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DEWALT 20V MAX* PEX Expander Tool Kit, 1-Inch (DCE400D2)


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Top Brand: DEWALT

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DEWALT 20V MAX* PEX Expander Tool Kit, 1-Inch (DCE400D2)
DEWALT 20V MAX* PEX Expander Tool Kit, 1-Inch (DCE400D2)
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Price-28% $418.00
List:$579.96
-5% $399.00
List:$420.63
-53% $98.83
List:$210.86
-8% $489.00
Typical:$529.99
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Get it as soon as Monday, May 12
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Important information

Bulb Voltage

20 volts

Customer reviews

4.7 out of 5 stars
514 global ratings

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Customers say

Customers find the PEX expander tool works well, particularly in tough spaces, and appreciate that it's easier to use than manual tools. They praise its quality, battery life, and space efficiency in tight areas, and consider it worth the price. The expansion capacity receives mixed feedback, with one customer noting it works flawlessly with PEX-A tubing and expansion collars.

AI-generated from the text of customer reviews

61 customers mention "Works well"61 positive0 negative

Customers find that the PEX expander tool works well, with one customer noting it performs particularly well in tight spaces.

"...DeWalt tools I have, meaning it feels like a quality tool and performs great...." Read more

"This was a great addition to my tools. Works as intended and the kits comes with everything you need." Read more

"Works like it should. It's a spendy tool but if you need it you need it." Read more

"...Had to rotate back and fourth. Excellent idea compared to the two handle expander, but the 1/2 inch head I had to work about just as much...." Read more

30 customers mention "Value for money"22 positive8 negative

Customers find the PEX expander tool set well worth the price.

"...Shipping could have been faster but, price was best around" Read more

"Works great came with two batteries And a good price Plus free shipping B" Read more

"This tool is worth its weight in gold." Read more

"...The tool is dang pricey, but after watching countless videos on YouTube and reading reviews on pex-a vs pex-b and crimp fittings, I opted for the..." Read more

29 customers mention "Ease of use"29 positive0 negative

Customers find the PEX expander tool easy to use, noting it's much easier than manual tools, with one customer mentioning it makes installing PEX-A plumbing simple.

"...Perfect weight even easy and comfortable for the wife to use." Read more

"...tubing, fittings and expansion rings from Amazon and have had great success installing and repipeing portions of the garage water and air lines." Read more

"...This made my life so much easier. Put the connector on the tip. Pull the trigger expands the plastic with no effort on my part...." Read more

"...This was the excellent choice working in tight spaces! Easy to use and very fast! I recommend this tool!" Read more

11 customers mention "Speed"11 positive0 negative

Customers appreciate the tool's speed, noting it makes work fast and provides time savings, with one customer mentioning it makes their job productivity run smoother.

"Very powerful and much faster than the other 12v system that Milwaukee makes." Read more

"...It works well and gets the job done quickly. I think for the price, the batteries should be bigger...." Read more

"...Easy to use and very fast! I recommend this tool!" Read more

"...You can work in tight spaces, it's fast, it's easy and you don't have to make room to get the handles for the hand actuated tools in there to do the..." Read more

9 customers mention "Quality"9 positive0 negative

Customers find the PEX expander tool to be of good quality and solid construction, with one customer noting its reliability and ability to handle tough jobs.

"...tool is like any of my other DeWalt tools I have, meaning it feels like a quality tool and performs great...." Read more

"...project but I'm pleased with how well it worked and this feels like a solid, quality tool." Read more

"...As with any quality hand or power tool, you get what you pay for, and I got just that...." Read more

"this tool took a tough job and made it a walk in the park...." Read more

8 customers mention "Battery life"8 positive0 negative

Customers are satisfied with the tool's battery life, with one mentioning it comes with two batteries.

"Great set! I use this for lots of jobs and the battery life is long. Perfect weight even easy and comfortable for the wife to use." Read more

"...(as do most Dewalt tools) and it comes with a case, charger and two batteries...." Read more

"No surprises. Came with charger and two batteries. No tools required to set up for different Pex A diameters. Plenty of power to do the intended job...." Read more

"Tool is great came with two batteries. Have no leaks after use good enough" Read more

7 customers mention "Space efficiency"7 positive0 negative

Customers appreciate the tool's ability to work in tight spaces.

"3/4 inch worked good. Did not try One inch expander. 1/2 inch expander would not work without working tool excessive. Had to rotate back and fourth...." Read more

"...This was the excellent choice working in tight spaces! Easy to use and very fast! I recommend this tool!" Read more

"...You can work in tight spaces, it's fast, it's easy and you don't have to make room to get the handles for the hand actuated tools in there to do the..." Read more

"...Design makes it easy to get into tight places. Although pricey it pays for itself in ease of use, quality of connections and time savings." Read more

6 customers mention "Expansion capacity"3 positive3 negative

Customers have mixed experiences with the expansion capacity of the tool, with some reporting it works flawlessly with PEX-A tubing and expansion collars, while others mention issues with 3/4" PEX.

"...The tool is balanced well, and it expands the pex-a tubing and expansion collar flawlessly...." Read more

"...” trunk lines and started making connections and this tool would not expand 3/4” pex. I tried everything and just doesn’t have to power to expand...." Read more

"This pex pipe stretching tool works so well that anyone can do their own plumbing...." Read more

"...Long story short, this PEX expander is a piece of junk." Read more

Tool failed on 3rd day of use
1 out of 5 stars
Tool failed on 3rd day of use
Unfortunately the DeWalt DCE400 failed on the third day of use, didn't even make it halfway through plumbing one home. It intermittently makes a snapping noise and when this occurs the bit is expanded into the pipe and stays stuck in the open position. The tool won't retract to release the pressure. The expanding head must be unscrewed from the tool to release the pressure. It doesn't do it every time but when it does, plumbing is stopped in its tracks. DeWalt said it would take two to three weeks to process a warranty return for repair or replacement. Meanwhile the jobsite sits unfinished for those two or three weeks waiting on warranty replacement.
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Top reviews from the United States

  • Reviewed in the United States on May 1, 2025
    I'll never go back to pex crimp fittings after using this thing. This tool, along with pex-a tubing and expansion fittings are the bee's knees.

    One of the hot water copper lines in our house developed a random leak under the slab. Never have dealt with that before in any house we've owned. So, my only options were to bust the slab up and repair the line, or abandon the leaking line and run a new pex-a line off the hot water manifold up and over through the attic and down to our master bath. Naturally, I opted for the latter, along with insulating the line in the attic.

    I did a bunch of research on this tool and the Milwaukee M12, and ultimately decided on the DeWalt. The tool is like any of my other DeWalt tools I have, meaning it feels like a quality tool and performs great. The tool is balanced well, and it expands the pex-a tubing and expansion collar flawlessly.

    The tool is dang pricey, but after watching countless videos on YouTube and reading reviews on pex-a vs pex-b and crimp fittings, I opted for the DeWalt expansion tool and to replumb with pex-a. The money spent was well worth it as I have complete confidence in the install. Once again, this tool and pex-a expansion fittings are the way to go.
  • Reviewed in the United States on December 27, 2024
    Great set! I use this for lots of jobs and the battery life is long. Perfect weight even easy and comfortable for the wife to use.
    One person found this helpful
    Report
  • Reviewed in the United States on March 31, 2025
    This was a great addition to my tools. Works as intended and the kits comes with everything you need.
  • Reviewed in the United States on February 8, 2025
    Works like it should. It's a spendy tool but if you need it you need it.
    One person found this helpful
    Report
  • Reviewed in the United States on April 2, 2024
    After research, I opted for this brand over its red and white competitor due to price. This expander has been an excellent choice and has certainly made installing the Pex A expansion connections a breeze. My son has always used crimps and Pex B from the big box stores and complains about the hand crimpers every time. After research, I went with Pex A and ordered all tubing, fittings and expansion rings from Amazon and have had great success installing and repipeing portions of the garage water and air lines.
    4 people found this helpful
    Report
  • Reviewed in the United States on April 19, 2025
    Good tool to have if you're running pex. Be sure to apply grease before first use and apply every so often afterwards. I don't recommend using the 1" bit for this tool, mine broke, but got it fixed under warranty. And for some reason the led light stays on for 3 minutes idk why. Overall pretty good tool to have
  • Reviewed in the United States on March 23, 2025
    Giving 5 stars for the price. Did not use tool as I had the plumbers just come and fix the problem. Case felt heavy and it has good reviews. Return was easy peasy.
  • Reviewed in the United States on February 17, 2025
    came on time,exactly as described

Top reviews from other countries

  • David
    5.0 out of 5 stars As Described
    Reviewed in the United Arab Emirates on August 22, 2023
    As Described
  • Gary Arsenault
    5.0 out of 5 stars Thank goodness for dewalt making this tool for plumbing
    Reviewed in Canada on September 22, 2024
    Works like a charm.
    Even God would be proud to use this tool
  • Marc C
    4.0 out of 5 stars Effortless PEX Expanding
    Reviewed in Canada on July 17, 2024
    A bit expensive but The DEWALT 20V PEX Expander is a fantastic tool for plumbing projects. It's powerful, easy to handle, and expands PEX tubing quickly and evenly. The battery life is impressive, and the tool's build quality is top-notch. Highly recommend for any DIY or professional plumber!
    Customer image
    Marc C
    4.0 out of 5 stars
    Effortless PEX Expanding

    Reviewed in Canada on July 17, 2024
    A bit expensive but The DEWALT 20V PEX Expander is a fantastic tool for plumbing projects. It's powerful, easy to handle, and expands PEX tubing quickly and evenly. The battery life is impressive, and the tool's build quality is top-notch. Highly recommend for any DIY or professional plumber!
    Images in this review
    Customer image
  • Greg
    5.0 out of 5 stars perfect for me
    Reviewed in Canada on May 10, 2024
    very good
  • Nels
    5.0 out of 5 stars Worth the money
    Reviewed in Canada on June 9, 2018
    I have used and own both the manual and the Milwaukee PEX tool. I bought the Dewalt because the price was great and it will work with the batteries that I already own. The tool works great.

Product Summary: DEWALT 20V MAX* PEX Expander Tool Kit, 1-Inch (DCE400D2)

From DEWALT

4.7 out of 5 stars, 514 ratings

Customer reviews

50+ bought in past week

Price

One-time purchase: $418.00 28% Savings

List Price: $579.96

Purchasing options

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About this Item

  • The cordless tools combo kit expands 3/8-inch with 1-inch Pex Type-A tubing
  • Construction tools with automatic rotating head action for even expansion
  • DEWALT tool kit comes with 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
  • Uses DEWALT PEX Heads. Compatible with Milwaukee and Uponor Heads. (Milwaukee is a registered trademark of Milwaukee Electric Tool Corp. Uponor is a registered trademark of Uponor Oyj.)

Product Description

Expand PEX Type-A tubing from 3/8-inch to 1-inch with this 20V MAX* Cordless 1-inch 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 dimly 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. DEWALT 20 volt tools use DEWALT PEX Heads, and are compatible with leading competitive PEX heads.

Important Information

Bulb Voltage

20 volts

Proposition 65 Warning for California Consumers

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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