Compare
4.5 vs 5 vs 7 in grinder classes
Side-by-side disc ceilings for this site’s angle-grinder ladder, with merchant paths and when NO_MATCH applies.
| Class | Best for | Trade-off |
|---|---|---|
| 4.5 in | Light metal, auto body, tight spaces | Smaller cut depth |
| 5 in | General DIY cutting and grinding | Still limited vs 7 in |
| 7 in | Larger stock and deeper cuts | Above 7 in → NO_MATCH |
| NO_MATCH | Needs > 7 in disc | Industrial grinder or other process |