Answer
For leather edges, use 320 or 400 lightly, then 600 before burnishing.
Why it happens
Cut leather fibers need gentle smoothing before burnishing or finishing.
Recommended grit
Use 320 or 400 for rough edges, then 600 for finer smoothing.
Wet or dry
Dry.
Success check
The edge feels smoother and is ready for burnishing or finish.
What to do
- Trim loose leather fibers first.
- Sand the edge lightly with 320 or 400.
- Refine with 600.
- Clean and burnish or finish the edge.
Avoid: Do not sand the leather face aggressively.