DeWalt Orbital Sander DWE6421 Review

  • Side View
    DeWalt Orbital Sander DWE6421 Review
  • Dust Port
    DeWalt Orbital Sander DWE6421 Review

Sanding can be a slow, messy and tedious process. But, it doesn’t have to be.

The Dewalt DWE6421 is a 5” random orbit sander.  It has a single speed 3 amp motor that spins the pad at 12,000 OPM.  A counterweight design reduces vibration for improved comfort for long sanding sessions.

The body of the sander has a molded grip on top.  A dust proof switch is located at the front of the unit and a dust port that will fit the included dust bag or a DWV9000 universal quick connector for 1 1/4” vacuum systems. The sander has a hook and loop style pad on the bottom.

I first tested the sander on an old piece of plywood I had around.  The first thing I noticed when I turned the unit on is that it was wasn’t as loud as I was expecting.   Moving the sander back and forth across the surface was very effortless and it didn’t bog down with a little pressure.  In just a few minutes I had a square foot of the plywood pretty smooth.   The dust collection worked decently but there was still a bit of dust left on the piece.  I have to think the vacuum adapter would have done a better job.

The next test was on an old lawn trailer I have in the shed.  The paint has been flaking off for a while so I decided to give it a go with this sander.  I switched the pad to a 220 grit automotive pad, sprayed the trailer with water and went to work.  It was able to remove the paint but it took a bit longer than a pneumatic sander would.

Overall, I think the Dewalt DWE6421 is a good little sander.  It would be perfect for a DIYer or a professional that only needs to sand occasionally.  For larger or detail jobs, a multi-speed sander would be a better fit.


8 Total Score
Very Good!

The DeWalt DWE6421 is perfect for any DIYer or a professional that only needs to sand occasionally.

Dust Collection
  • Comfortable in hand
  • Good Dust Collection
  • Quieter than expected
  • Hook and loop
  • Only Single Speed
  • Needs extra attachment for vacuum or external dust collector
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