Not Sure What Grit To Use
The customer does not know which grit to start with or which grit comes next.
Skipped from 120 grit to 320 grit
Deep 120 grit scratches are still visible after switching to 320 grit. Recommended grit: After 120 grit, refine with 150 or 180, then 220, then 320.
Choosing a starting grit
It is unclear which grit to start with. Recommended grit: Use 60–120 for heavy removal, 150–240 for normal prep, 280–400 for fine prep, and 600–3000 for fine wet sanding or finishing stages.
How to use the 60 to 3000 grit kit
It is unclear how to use the full 60 to 3000 grit assortment. Recommended grit: Choose the range by task: 60–120 removal, 150–240 prep, 280–400 fine prep, 500–800 extra fine, and 1000–3000 wet sanding or polishing prep.
What grit to use for wood prep
It is unclear which grit to use when preparing wood. Recommended grit: Use 150 or 180 for rough wood, 220 for normal prep, and 320 for finer finish prep.
What grit to use for paint prep
It is unclear which grit to use before painting. Recommended grit: Use 220–320 for prep and leveling, 400 before paint, and 600 for finer final prep when needed.
What grit to prep metal before paint
It is unclear which grit to use before painting metal. Recommended grit: Use 120–180 for rust or old coating cleanup, 220–320 before primer, and 400 for finer prep on smooth metal.
What grit to prep plastic before paint
It is unclear which grit to use before painting plastic. Recommended grit: Use 400 for normal plastic prep, 320 only for rough spots, then refine with 600 before coating.
Using the assorted kit for heavy removal
It is unclear which assorted kit grits to use for heavy removal. Recommended grit: Use 60 or 80 for aggressive removal, 120 for controlled removal, then refine with 150, 180, and 220.
Using the assorted kit for finish prep
It is unclear which assorted kit grits to use before applying a finish. Recommended grit: Use 180 or 220 for normal smoothing, then refine with 320 and 400 before applying finish.