Uploaded August 2026 | Updated September 2026, 2 days ago

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Random orbital sanders are supposed to leave a smooth surface, so why do sanding swirls and pigtails still show up after you apply finish?

In this video, we'll look at what actually causes swirl marks, why simply sanding longer doesn't always solve the problem, and several simple habits that can dramatically improve your results.

We'll cover:
• Why sanding scratches never truly disappear
• Choosing the right grit progression
• Hidden debris behind the sanding disc
• Too much pressure and moving too fast
• How to inspect your work before applying finish
• A simple hand sanding trick that helps hide the final scratches

If you've ever wondered why those mysterious scratches keep appearing, this video should help you understand exactly what's happening.

Thanks so much for watching, and as always...Keep making things!

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*MAKER TEAM*
Michelle B
Keith Current
Rich Lightfoot
Tutor the Barbarian
Aubrey G.
Nukebert
Sam W.
Aaron Knows DIY
G. Salazar
David B.
Marc B.
Richard B.
Ben. K
Bill Patterson
D. Lundman

Make Things

00:00 Intro
00:21 What is it
01:40 1. Poor progression
03:32 2. The particle below
06:01 3. Too much pressure
06:53 4. The final inspection
07:52 Credits

#MakeThings