Answer
For woodturning, sand through 150, 180, 220, 320, and 400 before finishing.
Why it happens
Curved spinning surfaces need gradual grit steps and light pressure to avoid grooves.
Recommended grit
Use 150, 180, 220, 320, then 400 for finish sanding.
Wet or dry
Dry.
Success check
The turned piece feels smooth with no circular scratch bands.
What to do
- Remove tool marks before fine sanding.
- Sand with 150 or 180 to level torn grain.
- Move through 220, 320, and 400.
- Clean dust before applying finish.
Avoid: Do not skip grits on visible turned surfaces.