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Hapstone R2 BLACK Knife Sharpener

  • Brand: Hapstone
  • Availability: In Stock

Available Options


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.

BLACK Edition

 Edition of Hapstone R2 is the first knife sharpener featuring four clamps. Asymmetric angled universal clamps utilize flexible flat spring and spacer screws to secure knives of any shape including a full flat grind.

BLACK Edition of Hapstone R2 includes:

Fine-Tuning Adapter

Two Spring-Assisted Stoppers

Digital Angle Gauge

Ball-End Hex Screwdriver (4 mm)

Four Angled Universal Clamp

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 (160 mm) 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
  • Available now: Rotating Clamp Module (Hapstone R2)
  • Available now: Extendable Table Module (Hapstone V8)
  • Available now: Small Table Module (Hapstone M3)
  • Available now: Scissors Module

Hapstone R2

  • Rotating clamp module with the crossbar for multiple clamps
  • Adjustable flipping strength
  • Any sharpening angle in a range from 12° to 40° degrees (*)
  • Max blade length 12" (300 mm), max thickness 1/4" (8 mm).
  • Available now: Angled Universal Clamps (R2 Standard and R2 BLACK)
  • Available now: Y-shaped Central Clamps (R2 Classic)
  • Available now: Straight Side Clamps (R2 Classic)
  • Available now: Short Lite Clamps (R2 Lite)

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

Hapstone R2 Kits

Hapstone R2 is available in 4 pre-configured kits: Lite, Standard, Classic, and 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.

Boride (5) 

Silicon Carbide (5)

Boride T2 150

Boride T2 220

Boride T2 400

Boride T2 800

Boride T2 1200

Hard bonding aluminum oxide stone set for experienced users. For all steels. Can be used with water or oil.


Silicon Carbide 120

Silicon Carbide 240

Silicon Carbide 600

Silicon Carbide 1000

Silicon Carbide 2500

Silicon Carbide Sharpening Stones are used for sharpening knives using Hapstone  sharpeners. The stones are made of silicon carbide and are designed for the hardest steels (up to 65 HRC).

Diamond Matrix(6)
Aluminum Oxide(5)

Edge Pro  80
Edge Pro  250
Edge Pro  650
Edge Pro  1100
Edge Pro  2300
Edge Pro  4000

Premium resin-bonded diamond set. All diamonds are mounted on aluminum blanks and easy to use. To be used with water.


 Aluminum Oxide 120
 Aluminum Oxide 240
 Aluminum Oxide  600
 Aluminum Oxide  1000
 Aluminum Oxide  2500

Aluminum Oxide Sharpening Stones are used for sharpening knives using Hapstone knife sharpeners. The stones are made of aluminum oxide and are designed for soft or medium steels (up to 59 HRC). 
Metallic CBN Poltava (6)
Chosera Stone Set for Hapstone (4+1)

Metallic СBN 100
Metallic СBN  200
Metallic СBN  500
Metallic СBN 1200
Metallic СBN 2500
Metallic СBN 5000

Metallic CBN Sharpening Stones are used for sharpening knives using Hapstone sharpeners. CBN (Cubic Boron Nitride) is the second-hardest material after diamond.


Chosera 400
Chosera 1000
Chosera 3000
Chosera 10000


Silicon Carbide 120

 Premium japanese stone set for all steels. Includes complimentary 120 grit silicon carbide stone. All stones are pre-lapped, mounted on aluminum blanks, and easy to use. To be used with water.


We provides the 5-year warranty on Hapstone R2 knife sharpeners. You can be sure of the reliability of the devices and support from the manufacturer for the entire period of use.


  • Why new Hapstone sharpeners don't support 8" sharpening stones?

    Haptone has 8" stones support since the first version of Hapstone PRO. The best stone form-factor today is 6" Edge Pro. All new knife sharpeners must support it. 8" stones support is declared useless and economically unreasonable.    

  • I want to use my 8" bench stones. I will buy a sharpener with 8" stone support. 

    You will not use 8" bench stones even if your sharpener supports 8" stones. Bench stones are too heavy and obstruct visibility.

  • Hapstone R2 is smaller than Hapstone R1. Does it mean R1 is better?

    Hapstone R2 becomes smaller for one reason - 8" stone support has been eliminated. The main stone form factor is 6" Edge Pro. Hapstone R2 becomes 2" smaller and lighter.

  • Hapstone R2 is much cheaper than Hapstone R1. Does it mean R1 is better?

    Hapstone R2 is available in 4 different kits in different price ranges. Hapstone R2 Classic is the successor of Hapstone R1: triple clamp configuration, fine-tuning adapter, and spring-assisted stoppers. Hapstone R2 Classic is cheaper than Hapstone R1, but the price difference is not big. At the same time, Hapstone R2 has a better stone holder and better clamps.

  • How to use new clamps on Hapstone R1? Can I upgrade R1 to R2?

    All new clamps and the new rotating clamp module are incompatible with Hapstone R1. The adapter is in development. Hapstone R1 owners will get it for free with the purchase of a new rotating clamp module.

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