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Model#: DEWNDWE6421K

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Brand new items;Full manufacturer warranty available
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Dewalt DWE6421K 3 Amp 5 in. Random Orbital Sander Kit

  • Dewalt DWE6421K 3 Amp 5 in. Random Orbital Sander Kit
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Complete with a dust bag and carrying case, DEWALT's DWE6421K 3 Amp 5 in. Random Orbital Sander Kit features a powerful motor and 12,000 orbits per minute to deliver smooth performance in a variety of sanding applications and an ergonomic design for comfort as you work.
  • 3.0 Amp motor that spins the pad at 12,000 OPM
  • Shorter height allows the user to get closer to work piece
  • Rubber over-mold in all of the critical areas of the sander for comfortable use
  • Separate counterweight design reduces vibration for decreased user fatigue
  • Dust-sealed switch to protect against dust ingestion for longer switch life
  • Improved dust collection and interfacing with vacuum locking system
  • Dust bag has patented one-hand locking system
  • 3 Amp 5 in. Random Orbital Sander - DWE6421K
  • Dust Bag
  • Carrying Case (Bag)
  • Owner's Manual
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


Weight: 2.9 lbs.
Amperage: 3
Bluetooth Compatibility: No
Case Included: Yes
Case Type: Bag
Dust Collection: Yes
Motor Type: Brushed
Orbit Size: 3/32 in
Oscillations Per Minute(OPM): 12000
Pad Size: 5 in
Powered Tool Power Source: Electric - Corded
Speed Type: 1
Voltage: 120V
Wifi compatibility: No



4.7 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (2)
Powerful (2)
Best Uses
Frequent Use (2)
Great palm sander
Great sander fits perfectly in palm of hand easy to use and easy to change sandpaper not heavy at all
April 11, 2019
Second sander....
I bought this to put in my camp workshop where I do a lot of pallet furniture and displays. It's seriously heavy duty and knocks the high spots off the hardwood pallets in a hurry. As long as I let it do all the work, it will likely outlast me......
April 9, 2017
For me, a giant step backwards
I'm torn on this sander. The sander itself is what I expect from DeWalt but their dust collection port leaves much to be improved again. If you use a DeWalt dust collector you may give this sander 5 stars, but if you need to adapt it to a different dust collector, like I do, you may want to select a different brand of sander. In order to connect your collector you will probably have to either cut up your hose or stack up a 3 adapters that is rather unwieldy. Neither is a good choice. I'll keep this sander, but wouldn't have purchased it if I had known the problem with the hose.
February 13, 2017
i like it
this is a great sander at a great price. smooth operation, not super loud, easy to control
December 12, 2016
Yes, I would recommend this to a friend
Best Uses
Frequent Use
Absolutely the best quality sander for the price!
This sander can be used to sand almost anything. It can also be used as a buffer/polisher for finishing. This sander makes the sanding process enjoyable with its dust control, quietness, and low vibrations!
August 19, 2016
Yes, I would recommend this to a friend
Best Uses
Frequent Use
Perfect All Around Sander
Perfect all-around multi use sander to have laying around the house. Very convenient with the dust collection system
December 22, 2015

Questions & Answers

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Browse 6 questions Browse 6 questions and 8 answers
I am looking for a replacement dust collection bag for an older DW421 model serial # 344448
Please advise if this is available and if so how do I order it?
Thank you.
Ken Adams
Ken on Nov 30, 2015
BEST ANSWER: For help with replacement parts, please contact Dewalt directly at 800-433-9258
The sanding disks no longer stick to the pad and the pad looks normal. can I treat it somehow?
RICKEY on Jun 19, 2016
BEST ANSWER: The sandpaper will eventually wear out and not stick. The pad on the sander may wear out, as well, and need to be replaced. That happened to another sander I owned, not a DeWalt.
Good luck!
I am looking for a replacement pad for a De Walt # 370916
Richard on Jul 23, 2016
BEST ANSWER: For help locating parts, please use the link provided below:
Is any sandpaper discs supplied with the unit out of the box?
A shopper on Oct 3, 2018
BEST ANSWER: Model DWE6421K does not include any discs with the kit.
I am looking to order a Dewalt sander replacement pad for Dewalt DWF6421 orbital sander
Rog on Apr 19, 2016
BEST ANSWER: The pad assembly is part number N329079
can it be used for automotive, Thank you?
bob s on Oct 24, 2017


Most DEWALT® Tools purchased on or after January 1, 2004 come with a warranty package that includes:

Three-Year Limited Warranty. DEWALT will repair, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase. This warranty does not cover part failure due to normal wear or tool abuse. For further detail of warranty coverage and warranty repair information, visit or call 1-800-4-DEWALT (1-800-433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.

One-Year Free Service Contract. DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first year after purchase.

90-Day Money Back Guarantee. If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, or Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund - no questions asked.