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Hapstone Modular Platform
Hapstone R2 Opti is a premium guided knife sharpener with whole milled angled clamps, a rotating clamp module, and a rigid upgrade-ready platform for advanced sharpening performance right out of the box.
Clamp system
The R2 Opti comes with whole milled angled clamps made from a solid piece of aircraft-grade aluminum and anodized in black for added corrosion resistance and surface strength.
Performance
Designed for users who want higher rigidity and more confidence right away, without needing to upgrade the clamp system later.
Clamping system
Whole milled angled clamps are especially well suited for Scandinavian grinds, kitchen knives, EDC blades, and fillet knives. The undercut design also allows sharpening knives with a full flat grind.
Why R2 Opti
Hapstone R2 Opti is built for users who want a more rigid clamp setup from day one. It delivers a premium sharpening feel and is a strong choice when clamp stability is the priority.
Machined from solid aluminum for higher rigidity and dependable blade holding.
Each clamp is fixed with a single screw, making setup quicker and more convenient.
The clamps can slide freely along the rotating clamp module to secure knives up to 12" (300 mm) long.
Two screw sets are included: short screws for thin blades and standard screws for general-purpose sharpening.
Base
The platform base uses rubber-coated feet for secure and steady operation during sharpening.
Stone holder
Supports 6" sharpening stones in Edge Pro and KME formats, giving you broad abrasive compatibility.
Sharpening performance
The R2 Opti combines a lightweight alloy guide rod with a wooden handle, a linear ball-bearing pivot, and a rotating clamp module for consistent angle work and comfortable sharpening.
What’s included
Hapstone R2 Opti includes the essential R2 platform with whole milled angled clamps and two screw sets, giving you a rigid and advanced setup from the beginning.
1 Platform base
1 Vertical guide rod
1 Horizontal guide rod
1 Lightweight alloy guide rod with wooden handle
1 Linear ball-bearing pivot unit
1 Rotating clamp module
Adjustable flipping strength
1 pair of Whole Milled Angled Clamps for Hapstone R2
2 sets of screws
Short screws for thin blades
Standard screws for general-purpose sharpening
Technical details
| System | Hapstone R2 Opti |
|---|---|
| Platform | Hapstone Modular Platform |
| Clamp Module | Rotating clamp module with adjustable flipping strength |
| Included Clamps | Whole Milled Angled Clamps for Hapstone R2 (2 pcs) |
| Sharpening Angle Range | 8° to 35° (depends on blade geometry) |
| Blade Capacity | Up to 12" (300 mm) long and up to 1/4" (8 mm) thick |
| Clamp Material | Whole milled aircraft-grade aluminum, black anodized |
| Screw Options | Short screws for thin blades and minimum bite Standard screws for general-purpose sharpening |
| Stone Compatibility | 6" (160 mm) stones, Edge Pro & KME formats |
| Pivot Type | Linear ball-bearing pivot, no lubrication required |
| 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 Universal Straight Clamps for Hapstone R2 Whole Milled Angled (Fillet) Clamps for Hapstone R2 (included) 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.


