220 vs 320 Grit Sanding Discs: Which One Should You Buy?
220 and 320 grit sanding discs compared for orbital sanders: how each grit cuts, the finish each leaves, and which side suits each garage job.
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Top picks at a glance
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- 1
Dura-Gold 50 Sheet Assorted 3-2/3" x 9" Wet or Dry Sandpaper9.7/10View on Amazon - 2
WORKPRO 150 Pack 5 Inch Sanding Discs Sandpaper9.7/10View on Amazon - 3
Dura-Gold Premium 6" Gold Sanding Discs9.6/10View on Amazon - 4
5 Inch 8-Hole Hook and Loop Sanding Discs Sandpaper Red RoundView on Amazon - 5
Aiyard 5-Inch 8-Hole Hook and Loop Sanding Discs 220-GritView on Amazon - 6
Aiyard 5-Inch 8-Hole Hook and Loop Sanding Discs 320-GritView on Amazon - 7
S SATC 100 PCS PSA Sanding Discs 6 Inch Adhesive BackedView on Amazon - 8
Keeimp 100 Pcs 5 Inch Sanding Discs Hook and LoopView on Amazon - 9
Dura-Gold 5" Green Film Sanding DiscsView on Amazon
Verdict: In this 220 vs 320 grit sanding discs comparison, pick 220 grit if you are smoothing filler or bare wood and want the material gone faster. Pick 320 grit if the surface is already smooth and you want a fine finish pass before paint or a topcoat.
A sanding job in the garage usually comes down to a panel that needs smoothing before paint. The surface feels rough under a hand, the old finish shows scratches, and the next coat will show every mark the sander leaves behind. That is where 220 vs 320 grit sanding discs earn their keep: 220 grit does the smoothing step, and 320 grit refines the surface for paint.
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POTUINOM 100PCS 5 Inch Sanding Discs 220 Grit
A 100-disc box of 5 inch 220 grit gold sanding discs, hook and loop backed with 8 dust-extraction holes, for 125mm random orbital sanders.
Pros
- 100 discs in the box, so a big sanding job stays supplied
- Aluminum oxide abrasive with a yellow coating, stated for durability and a smooth finish
- 8 holes for dust extraction, plus hook and loop backing for fast disc changes
- Fits 125mm random orbital sanders
Cons
- Lifetime after-sales service is stated, but no warranty term is given
- No weight stated in the listing
- No thickened hook and loop back claim, unlike the red 220 discs
- No certification stated
POTUINOM 100PCS 5 Inch Sanding Discs 320 Grit
A 100-disc box of 5 inch 320 grit gold sanding discs, hook and loop backed with 8 dust-extraction holes, for 125mm random orbital sanders.
Pros
- 100 discs in the box for long finishing sessions
- Aluminum oxide abrasive with a yellow coating, stated for durability and a smooth finish
- 8 holes for dust extraction, plus hook and loop backing for fast disc changes
- Fits 125mm random orbital sanders
Cons
- Lifetime after-sales service is stated, but no warranty term is given
- No weight stated in the listing
- No thickened hook and loop back claim, unlike the red 320 discs
- No certification stated
POTUINOM 100PCS 5 Inch Sanding Discs 220 Grit
A 100-disc box of 5 inch 220 grit red sanding discs, thickened hook and loop back, 8 dust-extraction holes, aluminum oxide abrasive.
Pros
- 100 discs in the box, so a big sanding job stays supplied
- Thickened hook and loop back stated to hold with twice the adhesion of regular sandpaper
- Aluminum oxide abrasive stated to cut quickly and resist clogging
- 8 holes for dust extraction, keeping dust out of the work area
Cons
- No warranty term is stated
- No weight stated in the listing
- Spec table lists the pack 2.8 inches thick with no note explaining that figure
- No certification stated
POTUINOM 100PCS 5 Inch Sanding Discs 320 Grit
A 100-disc box of 5 inch 320 grit red sanding discs, thickened hook and loop back, 8 dust-extraction holes, aluminum oxide abrasive.
Pros
- 100 discs in the box for long finishing sessions
- Thickened hook and loop back stated to hold with twice the adhesion of regular sandpaper
- Aluminum oxide abrasive stated to cut quickly and resist clogging
- 8 holes for dust extraction, keeping dust out of the work area
Cons
- No warranty term is stated
- No weight stated in the listing
- Spec table measures the disc at 4.9212598375 inches, slightly under the stated 5 inch size
- No certification stated
Other tools worth a look
5 Inch 8-Hole Hook and Loop Sanding Discs Sandpaper Red RoundCheck price on Amazon
Aiyard 5-Inch 8-Hole Hook and Loop Sanding Discs 220-GritCheck price on Amazon
Aiyard 5-Inch 8-Hole Hook and Loop Sanding Discs 320-GritCheck price on Amazon
S SATC 100 PCS PSA Sanding Discs 6 Inch Adhesive BackedCheck price on Amazon
Keeimp 100 Pcs 5 Inch Sanding Discs Hook and LoopCheck price on Amazon
Dura-Gold 5" Green Film Sanding DiscsCheck price on Amazon
Side by side
| 220 grit | 320 grit | Notes | |
|---|---|---|---|
| Grit band in the listing | 120-320 grit for conventional polishing | 120-320 grit for conventional polishing | Same band on both sides |
| Disc size | 5 inches | 5 inches | Same size |
| Pack | 100 discs | 100 discs | Same count |
| Dust extraction | 8 holes | 8 holes | Same pattern |
| Cut | Removes material faster | Leaves a finer surface | 220 lower, 320 higher |
Example figures are manufacturer rated, as published on each listing and collected 8 November 2026.
220 vs 320 grit sanding discs in the garage
Both grits sit in the listing’s 120-320 grit band for conventional polishing, so neither is a rough-stock grit. 220 grit sits lower in that band, so it removes material faster and leaves a coarser surface than 320 grit. 320 grit sits higher, so it removes less material and leaves a finer surface ready for paint or a topcoat. Both sides state the same aluminum oxide abrasive, the same pack and the same dust extraction, so the grit number is the main difference between the two sides.
Pack, size and fit
Every listing here is a box of 100 discs in 5 inch size with hook and loop backing and 8 holes for dust extraction. The gold listings state a fit for 125mm random orbital sanders, while the red listings state a fit for most 5-inch random orbital sanders, die grinders, air grinders and electric drills.
Dust extraction and the work area
All four listings carry 8 holes for dust extraction. The red listings state the holes remove dust during sanding, keep the workspace clean and keep dust out of the air.
Choose 220 grit if
- You are smoothing filler or bare wood
- You want material gone faster before a finer pass
Choose 320 grit if
- Your surface is already smooth and needs a finish pass
- You are sanding before paint or a topcoat
Example discs
For more choices, see the best DA sander for auto body, and if you want to compare sander types, the DA sander vs orbital sander guide.
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Garage Fit Check
- Match every 5 inch disc to a 5-inch or 125mm random orbital sander pad.
- All four listings carry 8 holes for dust extraction; line the holes up with the pad holes.
- The gold listings state a fit for 125mm random orbital sanders; the red listings state a fit for most 5-inch random orbital sanders and die grinders.
- The red listings state a thickened hook and loop back with twice the adhesion of regular sandpaper.
FAQ: garage tools
Is 220 or 320 grit better for sanding before paint?
320 grit is the finer choice for a last pass before paint, since it sits higher in the listing’s 120-320 grit band for conventional polishing. 220 grit suits the smoothing step before that final pass.
Can 320 grit sanding discs remove scratches?
320 grit removes light surface marks and refines a surface that is already smooth. For deeper scratches, start with 220 grit, then move to 320 grit for the finish pass.
Do these sanding discs fit a 5-inch random orbital sander?
Yes. Every listing here is 5 inch with hook and loop backing, and the gold listings state a fit for 125mm random orbital sanders.
How many sanding discs come in a box?
Each listing here is a box of 100 discs, so one box covers plenty of smoothing and finish passes in the garage.
Related: the best DA sander for auto body, the DA sander vs orbital sander guide, the best cordless polisher and the how to use a dual action polisher guide.
