Hapstone R2 Standard Knife Sharpener

Description

The Hapstone R2 Standard is a professional-grade knife sharpener built on the Hapstone Modular Platform — an innovative system that lets you configure and upgrade your sharpener with no limitations. Combining high precision, reliability, and scalability, the R2 is ideal for both beginners and experienced sharpening enthusiasts.

This version is equipped with the rotating clamp module and a pair of universal angled clamps, which can be turned inward for small knives or outward for longer blades. A flexible flat spring and spacer screw system ensure secure clamping for any blade geometry, including full flat grinds.

Note: Sharpening stones are not included. Please select compatible stones and optional accessories using the product options above.

What's Included

Platform base
Vertical and horizontal guide rods
Linear ball-bearing pivot unit
Rotating clamp module
Universal Angled Clamps for Hapstone R2 (2 pcs)

Key Features

Rotating clamp module with adjustable flipping strength
Sharpening angle range: 12° to 40° (*varies by clamp and blade)
Supports blades up to 12" (300 mm) long and 1/4" (8 mm) thick
Compatible with 6" (160 mm) stones (Edge Pro & KME formats)
Linear ball-bearing pivot – no lubrication needed
Lightweight alloy guide rod with wooden handle
Rubber-coated feet for a stable base on any surface

Clamp Compatibility

The R2 system is compatible with a wide variety of 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

Modular Add-ons (Optional)

Precise Angle Adjuster for Hapstone R1/R2/V8/M3
Convex Adapter for Hapstone (Gen 2)
Convex Mini-Adapter
Spring-Assisted Stopper ⌀6mm
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 sharpening round knives (leathercraft)

Warranty

All Hapstone R2 sharpeners include a 5-year warranty. You can count on durability, consistent performance, and full support from the manufacturer.

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" (300 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