Description

Hapstone Modular architecture

Precision sharpening. Built to grow.

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

Configuration

Ready to sharpen.

Includes the rotating clamp module and a pair of Universal Angled Clamps for reliable and flexible blade positioning.

Modularity

Built on the Hapstone Modular Platform.

Add advanced modules, clamp types, and accessories over time without replacing the core system.

Clamping system

Adaptable to different blade shapes.

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.

Hapstone R2 Standard clamps and rotating module

Base

Stable on any surface.

The platform base uses rubber-coated feet for a secure and steady setup during sharpening.

Stone holder

Compatible with popular formats.

Supports 6" sharpening stones in Edge Pro and KME formats, giving you broad abrasive compatibility.

What’s included

Core system. Ready for your setup.

Hapstone R2 Standard includes the essential components you need to build a precise sharpening workflow on a modular platform.

Base & Rods

1 Platform base
1 Vertical guide rod
1 Horizontal guide rod

Pivot Unit

1 Linear ball-bearing pivot unit
No lubrication required

Clamp Module

1 Rotating clamp module
Adjustable flipping strength

Clamps

1 pair of Universal Angled Clamps for Hapstone R2

Sharpening performance

Precise, smooth, upgrade-ready.

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

Specifications

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

Supported clamps and add-ons

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.

Specifications
Dimensions (L x W x H)	23.6"х 8.4" х 10.8" (600 mm x 215 mm x 275 mm)
Maximum blade length	12" (320 mm)
Weight	7lb (3200g)
Maximum blade thickness	to 0.3" (8 mm)
Sharpening angle	from 12° to 40°
Minimum blade length	1,6" (40 mm)
The size of the stone	6" x 1" (150 x 25 mm) / 4" x 1" (100 x 25 mm)
Kit
Whole milled angled (fillet) clamps Hapstone (Pair)	—
Universal Angled Clamps for Hapstone R2 (Pair)	Included
Small Whole milled angled clamps Hapstone (Pair)	—
Rotating Clamp Module (R2 Module)	Included
Extendable Magnetic Table (V8 Module)	—
Fine-Tuning Adapter for Hapstone	—
Spring-Assisted Stopper Rings	—
Thickness Compensator Hapstone	—
Digital Angle Gauge	—
Ball-End Hex Screwdriver	—
Marker	Included
Compatibility of Module
Vertical Module for Hapstone R2/V8	✅Compatible
Precision angle adjustment module for Hapstone R1/R2/M3/V8	✅Compatible
Chisel module	✅Compatible
Extendable Magnetic Table (V8 Module)	✅Compatible
Scissors Attachment for Hapstone	✅Compatible
Hapstone Lighting System	✅Compatible
Compatibility of Accessories
Thickness Compensator Hapstone RS	❌Incompatible
Thickness Compensator Hapstone R2	✅Compatible
Spring-Assisted Stopper Ring	✅Compatible
Fine-Tuning Adapter for Hapstone	✅Compatible
Convex Adapter for Hapstone	✅Compatible
Compatibility of Clamps
Small Side Clamps for Hapstone	✅Compatible
Small Whole milled angled clamps Hapstone	✅Compatible
Universal Angled Clamps for Hapstone	✅Compatible
Whole milled angled (fillet) clamps Hapstone	✅Compatible