- Prime
- Clamp-Ready
- 🔪Includes adapter for PPA: Yes
- 🔪Includes clamp frame: Yes
- 🔪Includes clamps: No
- 🔪Includes support: Yes
- 🔩Clamp type: —
- ⚙️Principle: —
- 🎯Best for: Existing clamp owners
- 🔢Maximum number of clamps: 2
- 🔁Compatibility: Any Hapstone RS (recommended) or Hapstone R2 clamps
- Opti
- RS Wholemilled Angled Clamps
- 🔪Includes adapter for PPA: Yes
- 🔪Includes clamp frame: Yes
- 🔪Includes clamps: Yes
- 🔪Includes support: Yes
- 🔩Clamp type: Reversible angled
- ⚙️Principle: Whole milled duralumin
- 🎯Best for: Ease of use
- 🔢Maximum number of clamps: 2
- 🔁Compatibility: Any Hapstone RS (recommended) or Hapstone R2 clamps
- Universal
- RS Universal Angled Clamps
- 🔪Includes adapter for PPA: Yes
- 🔪Includes clamp frame: Yes
- 🔪Includes clamps: Yes
- 🔪Includes support: Yes
- 🔩Clamp type: Reversible angled
- ⚙️Principle: Flat-spring + spacer
- 🎯Best for: Knife versatility
- 🔢Maximum number of clamps: 2
- 🔁Compatibility: Any Hapstone RS (recommended) or Hapstone R2 clamps
- Central
- RS Universal Central Clamp
- 🔪Includes adapter for PPA: Yes
- 🔪Includes clamp frame: Yes
- 🔪Includes clamps: Yes
- 🔪Includes support: Yes
- 🔩Clamp type: Central
- ⚙️Principle: Flat-spring + spacer
- 🎯Best for: Single clamp lovers
- 🔢Maximum number of clamps: 2
- 🔁Compatibility: Any Hapstone RS (recommended) or Hapstone R2 clamps
