Item Name:
Covington Parts - 8" Diamond Sanding Disc - 325 Grit
SKU:
13-117
Description:
This 8" 325 grit diamond sanding disc is a medium-coarse coldworking abrasive disc designed for use on a compatible 8 inch lap or disc machine with a matching backing plate. It is constructed with a diamond abrasive surface bonded to a flexible disc backing, allowing it to cut hard materials evenly while keeping a consistent, flat grinding face. In glasswork, 325 grit is typically used after the roughest shaping steps when you need to true an edge, flatten a surface, or remove saw marks and deeper damage without jumping straight to fine finishing grits. It is a practical “workhorse” grit for general grinding and refinement, setting you up for smoother progression into finer discs like 600 and 1200 for finish improvement and polish preparation.
How it is used:
- Attach the 8 inch disc to a compatible backing plate or master lap on your disc machine.
- Use steady, even contact and keep the glass moving to avoid creating low spots or heat stress.
- Grind until saw marks, chips, or uneven edges are removed and the surface is uniformly abraded.
- Step up to finer grits to reduce the scratch pattern and refine the finish for pre-polish or polish.
Dimensions:
