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DEWALT

DEWALT DCE400B 20V MAX* 1" PEX Expander Tool (Tool Only)

  • Based on 1,102 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Aug 31
Order within 7 hours and 59 minutes
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Features

  • The pex tool expands 3/8-inch - 1-inch Pex Type-A tubing
  • The pex expander tool has an automatic rotating head action for even expansion
  • The pex expansion tool 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.)

Description

Expand PEX Type-A tubing from 3/8-inch to 1-inch with the 20V MAX Cordless 1inch 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. This DEWALT pex expander tool uses DEWALT PEX Heads, and it is compatible with leading competitive PEX heads.

Manufacturer: ‎DEWALT


Part Number: ‎DCE400B


Item Weight: ‎4 pounds


Product Dimensions: ‎15 x 4 x 10 inches


Item model number: ‎DCE400B


Size: ‎One Size


Color: ‎Multi


Style: ‎Classic


Finish: ‎Brushed


Material: ‎Blend


Pattern: ‎Solid


Shape: ‎Rectangular


Power Source: ‎Battery Powered


Voltage: ‎20 Volts


Item Package Quantity: ‎1


Measurement System: ‎Metric


Grit Rating: ‎36


Included Components: ‎(1) DCE400 PEX Expander, PEX Expander Grease, Kit Box


Batteries Included?: ‎No


Batteries Required?: ‎Yes


Warranty Description: ‎3 year limited warranty


Date First Available: August 24, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • What a great tool, PEX-a all the way.
Review Image by Clin Clin
The media could not be loaded. I have a Dewalt battery, so getting this over the Milwaukee version was an easy choice. I can’t talk enough about how easy this has made plumbing. It gets almost anywhere a crimper tool can get and some new places; you don’t have to pull apart handles to work the tool. I replumbed half of a house using it and the only thing that leaked was an NPT connection that tied into old work. I’ll probably use a Sharkbite next time for the old work. The kit includes three heads, 1/2, 3/4, 1 inch. The video I included with this review shows the 3/4 head. They screw on easy enough. You should apply the included grease when changing fittings. The trigger is huge and easy to use. The case is for-purpose and nice to have. This isn’t like a hammer or screwdriver; unless you plumb often you’ll want something for longer storage between use. The only two things that I could complain about with this type of PEX (a or expansion) is the availability of fittings in local stores (only Lowes seems to carry them), and trying to find a place to put the tool after you’ve expanded. The belt clip helps with that, but it’s heavy. It is best to plan a location to set the tool. ... show more
Reviewed in the United States on July 14, 2023 by Clin Clin
    • Saves so much time - definitely worth it.
It was much cheaper than the Milwaukee brand and works so well. The only issue is it doesn't come with a battery, so you need to have Dewalt batteries. I already have 3 so didn't need one and saved money not having to buy the battery. There's no way I could do my pex plumbing without this thing. I started out with a manual expander and while it's a good workout, not feasible for doing more than 5 connectors a day - you too muscle fatigues with the manual expanders. Each extender takes like 15 seconds and you just pull the trigger. Can't believe I waited so long to buy it. ... show more
Reviewed in the United States on May 17, 2024 by BraveWampa
    • Great tool
I’ve been using pex b for a while now and decided to go to pex a. This tool has made joining pex so much easier. I look for places to use this now. I want to change out all of my plumbing to use pex a now. Great tool.
Reviewed in the United States on March 2, 2025 by Amazon Customer
    • The only tool for PEX-A expansion
This tool is awesome. It works great and is fast. The tool comes with expansion heads for 1/2, 3/4, and 1 inch pex fittings. This kit has no battery or charger and since there were Dewalt batteries in my shop it made sense to get the bare tool. Plumbed an entire utility room with a pex manifold only took about 2 hours and would have been an all day job in copper. The hand operated tool is good for a here and there but not as good for 50 connections on a full re-plumbing job and this power expansion tool makes this job seem way too easy. Thats a good thing. Be sure to keep the cone portion of the tool clean and lubed with the special lubricant which comes in the tube. Remove the expansion head and clean the inside of the expansion head and the cone and apply lube. If you use too much lubricant then it will seep through the expansion head and get inside the pex tubing which does not seem to be an issue. Just wipe off the expansion head of the excess and keep working. Too little lubricant would shorten the life of the expansion head. It also has a hook that you can mount on either side and the head comes with a hook already. The hook on the head seemed a bit unhandy to use and preferred to use the hook mounted at the battery end of the tool and it made for a more natural grip when reaching for the tool when hung on your tool belt. Milwaukee makes a tool and seems like the head of the tools are identical. One may directly compare the two and for my use it made more sense to maintain battery compatibility. ... show more
Reviewed in the United States on February 11, 2020 by Ron H
    • This is pro-grade DeWALT tool!
Oh yes, it does what it's supposed to and does it perfectly. Very easy to make Pex-A connections in seconds. Save thousands by doing not-so-hard-to-do piping by yourself! I've upgraded my basement water (cold/hot) supply pipes from 1/2" copper to 3/4" Pex-A using the tool. Replaced kitchen sink pipes too. ... show more
Reviewed in the United States on January 28, 2025 by Placeholder
    • Must have for expandable PEX-A
This tool does exactly what it is made to do. I needed it for a large weekend DIY plumbing project at home utilizing both the 1/2" and 3/4" attachments. I made about 30 connections, and the first battery is still going strong. The LED light on it is great. The only issue I have is the ergonomic design of the overall tool. It isn't balanced well, and unless you sit it down on a perfectly flat surface, it will fall over---usually on the tip. It is also pretty heavy. I also find the tool to be unnessarily tall/long. I think Dewalt needs to redesign the handle and shorten it up. I'd say most of the time when doing plumbing things you need to be able to get the tool into a tight confined area. I'd say this is about the same height as a typical propane or Map gas tank and torch set up. But overall, I like it, its fast, and makes working with PEX-A even more effortless. The price is pretty high too. I bought it for better experiences with Dewalt over Milwaukee. While totally worth it for Pex, I'm not sure it is a good price point for the average DIYer. ... show more
Reviewed in the United States on May 1, 2019 by Chris S
    • Convenient, Modern Way to Plumb
I’ve been happy with this tool although, I haven’t had cause to use the 1” expander. Mainly ³⁄₄” around my water heater. Amazingly quick and problem free compared to soldering. But, you have to do some soldering to get started with an adapter. I like that PEX-A is full flow and that the piping is cheap. I probably don’t do enough plumbing to justify the cost of this tool but it is pretty cool and I’ll gradually get some use out of it. ... show more
Reviewed in the United States on December 28, 2023 by Glenn R. Howes
    • Great tool
Love this tool for installing pex A. The only thing is it does struggle just a bit with 1” fittings. I have to expand longer in order to stretch the coupling long enough for fit up. Other than that it works great
Reviewed in the United States on December 14, 2024 by JESSE VILLASANA

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