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Hapstone Modular architecture
Hapstone R2 Standard is a guided knife sharpener with a rotating clamp module, universal angled clamps, and upgrade-ready modular architecture.

Configuration
Includes the rotating clamp module and a pair of Universal Angled Clamps for reliable and flexible blade positioning.
Modularity
Add advanced modules, clamp types, and accessories over time without replacing the core system.
Clamping system
The included Universal Angled Clamps can be turned inward for smaller knives or outward for longer blades. A flexible flat spring and spacer screw system helps keep blades stable, including full flat grinds.

Base
The platform base uses rubber-coated feet for a secure and steady setup during sharpening.
Stone holder
Supports 6" sharpening stones in Edge Pro and KME formats, giving you broad abrasive compatibility.
What’s included
Hapstone R2 Standard includes the essential components you need to build a precise sharpening workflow on a modular platform.
1 Platform base
1 Vertical guide rod
1 Horizontal guide rod
1 Linear ball-bearing pivot unit
No lubrication required
1 Rotating clamp module
Adjustable flipping strength
1 pair of Universal Angled Clamps for Hapstone R2
Sharpening performance
The R2 Standard combines a lightweight alloy guide rod with a wooden handle, a ball-bearing pivot system, and a rotating clamp module for controlled angle work and comfortable sharpening.

Technical details
| System | Hapstone R2 Standard |
|---|---|
| Platform | Hapstone Modular Platform |
| Clamp Module | Rotating clamp module with adjustable flipping strength |
| Included Clamps | Universal Angled Clamps for Hapstone R2 (2 pcs) |
| Sharpening Angle Range | 12° to 40° (varies by clamp and blade) |
| Blade Capacity | Up to 12" (300 mm) long and up to 1/4" (8 mm) thick |
| Stone Compatibility | 6" (160 mm) stones, Edge Pro & KME formats |
| Pivot Type | Linear ball-bearing pivot, no lubrication needed |
| Guide Rod | Lightweight alloy guide rod with wooden handle |
| Base | Rubber-coated feet for enhanced stability |
| Sharpening Stones | Not included |
| Warranty | 5 years |
Compatibility
| Compatible Clamps | Universal Angled Clamps for Hapstone R2 (included) Universal Straight Clamps for Hapstone R2 Whole Milled Angled (Fillet) Clamps for Hapstone R2 Central Y-Shaped Clamp for Hapstone R2 Whole Milled Straight Clamps for Hapstone RS Small Whole Milled Angled Clamps for Hapstone RS Small Central Y-Shaped Clamp for Hapstone RS Small Universal Angled Clamps for Hapstone RS |
|---|---|
| Optional Add-ons | Precise Angle Adjuster for Hapstone R1/R2/V8/M3 Convex Adapter for Hapstone (Gen 2) Convex Mini-Adapter Spring-Assisted Stopper ⌀6 mm Thickness Compensator for R2/V8 Vertical Rod (Gen 2) for R2/V8 Hapstone Lighting System Extendable Table Module (V8) Chisel Sharpening Module Scissors Sharpening Module Turntable Module for round knives |
Note: Sharpening stones are not included. Please select compatible stones and optional accessories using the product options above.


