Hapstone R2 Opti Knife Sharpener

Hapstone R2 Knife Sharpener is the new knife sharpener from Hapstone, supplier of successful Hapstone R1. Hapstone R2 on par with Hapstone V8 and Hapstone M3 is part of the Hapstone Modular Platform, innovative technology to let customers configure and upgrade the sharpening system with no limitations. Hapstone R2 is kitted with the cutting-edge rotating clamp module and delivers the ultimate combination of high precision, rich features, and scalability to knife sharpening enthusiasts.

Hapstone R2 Opti is a new main-stream kit in the sub-$300 price segment. R2 Opti features Opti Clamps (Whole Milled Angled clamps) - the latest development of Hapstone for R2 knife sharpener. Opti is a fusion of Hapstone universal angled clamps (asymmetrical orientation) and Hapstone whole milled clamps (material and clamp shape). Opti Clamps utilize CNC milled superelastic duralumin alloy jaws with internal undercut for full flat grind blades. Opti Clamps can be combined with other Hapstone clamps of standard length. Opti Clamps can be turned inward (for small knives) or outward (for long knives). 

Hapstone Modular Platform

• Hapstone Modular Platform and all modules can be purchased separately
• The base with the pedestal stand for modules
• Pivot unit with the full 360° rotation and parking hook for the guide rod
• Linear ball-bearing provides smooth guide rod movement and requires no lubrication or cleaning in heavy-duty usage
• Auto-adjustable universal stone holder with built-in digital angle gauge holder
• Suitable for sharpening stones up to 6 inches (160mm) including Edge Pro and KME formats
• Light-alloy horizontal shaft for better pressure control during the sharpening process
• Wooden handle to make time-consuming work a little easier
• Rubber coated supporting legs that can be used on any surface
• Option: Rotating Clamp Module (Hapstone R2)
• Option: Extendable Table Module (Hapstone V8)
• Option: Small Table Module (Hapstone M3)
• Option: Scissors Module
• Option: Chisel Module

Hapstone R2

• ⚙️Rotating clamp module with the crossbar for multiple clamps
• ⚙️Adjustable flipping strength
• 🔪Any sharpening angle in a range from 8° to 35° degrees (*)
• 📏Max blade length 12" (300mm), max thickness 1/4" (8mm)

* The sharpening angle range varies between different clamps and blades.

Hapstone R2 Kits

Hapstone R2 is available in 4 pre-configured kits: Lite, Standard, Opti, BLACK. All the kits include Hapstone Modular Platform and Rotating Clamp Module.

Stone bundles

You can purchase the sharpener in a bundle with one of our stone sets. Each of the recommended stone bundles includes stones with evenly incremented grit (grain size). You can check our recommendation, depending on the steel hardness of your knives.

If you already have a collection of sharpening stones, or if you plan to purchase stones of your choice, choose the Barebone kit with no stones.

Diamond Plate Bundles

Resin Bonded Diamond bundles

Waterstone bundles