The Hapstone Hex screwdriver with ball end allows the user to quickly tighten the clamps on their sharpening system.
The 4mm Screwdriver fits the
Hapstone Modular Platform
Hapstone R2 - Full sized clamps
Hapstone R1 - Most components
Hapstone M2 - Three point guide
Hapstone V7 - Three point guide
Hapstone K1 - Most components