| - | Features |
|---|---|
| #1 | For use with 1/4 in. (6.35 mm) chuck high-speed drills |
| #2 | Especially useful where larger wheels will not fit or where small abrasive wheels wear out too quickly |
| #3 | Use in electric drill or other similar machines |
| #4 | Useful where larger wheels won't fit or where smaller abrasive wheels wear out too quickly |