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Many guided knife sharpeners include L-shaped Allen keys, the least expensive tool to handle hex screws. Hex screwdrivers are much easier to use than Allen keys. If you use your sharpener on a regular basis, hex screwdrivers will make your life comfortable.
| 3.0 mm |
|---|
| Hapstone R2 Lite - clamps |
| TSProf K03 - body |
| TSProf K03 - clamps |
| 4 mm |
|---|
| Hapstone Modular Platform |
| Hapstone R2 - full-sized clamps |
| Hapstone R1 - most components |
| Hapstone M2 - three-point guide, stone holder |
| Hapstone V7 - three-point guide |
| Hapstone K1 - most components |
| TSProf K03 - whole-milled clamps |
