Latest invention in knife sharpening. Does the job in minutes. No skills required.
Why Hapstone?
Welcome to the Hapstone RS project page, a new knife sharpening system from the Ukrainian team of Hapstone that will surprise you with its efficiency and ease of use. If you want the knives in your kitchen, in your repair shop, or just for your hobbies to be always sharp then Hapstone RS is the perfect choice for you.
Since we have invested five years of our experience into development of the concept and design of the best sharpening system, now we can say that Hapstone RS is the finest knife sharpener on the market with its unique design.
Sharpening of all types of knives
Our sharpening system is designed to be versatile and accommodate a wide range of knife sizes and thickness. Whether you have a small paring knife or a large chef’s knife, our system can handle it all.
With a range of 40 to 230 mm in length and up to 6 mm in thickness, our sharpening system can easily sharpen all types of knives, from thin fillet knives to thick cleavers.
In addition, our innovative design ensures that your knife is securely held in place during the sharpening process, so you can be sure that your knife will be sharpened evenly and consistently every time.
Ball pivot
An innovative magnetic 360* quick release module providing total sharpening freedom.
Designed with durability and performance in mind, this module is made from high-quality materials that are built to last. Its magnetic attachment system ensures a secure and stable connection, while its compact size and lightweight design make it easy to use. 
System Features
General characteristics of the Hapstone RS
- Weight: 88.18 oz (2.5 kg)
- System sizes: 11″х5.5″х7.4″ (280х143х188mm)
- Minimum blade length: 1.6″ (40 mm)
- Maximum blade length: 9.1″ (230 mm)
- Maximum blade thickness: 0.3″ (6 mm)
- Minimum sharpening angle: 12°
- Maximum sharpening angle: 30°
Stone usage:
- 6″ x 1″ (150 x 25 mm)
- 4″ x 1″ (10 x 25 mm)
Maximum number of clamps on the bar: 4
Materials used in the Hapstone RS
In creating the Hapstone RS, we paid great attention to details and materials to ensure the best performance and durability of the system. Whole milled angled clamps are made of aircraft-grade aluminum, and the guides are made of high-quality stainless steel for durability and stability in operation.
The stone holder, screws, clamps, and the frame of the rotating module are made of solid aircraft aluminum. The heavy 8 mm steel base with silicone feet makes the sharpener absolutely stable.
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Rewards
When choosing an award-winning knife sharpening kit, it is important to choose the kit that best suits your tasks. All the kits are designed to provide excellent results, but each one has different features and functionality. So, when choosing a knife sharpening kit, it’s important to consider your experience and skills, the types of knives you plan to sharpen.
Hapstone RS (no stones)
If you have already sharpened stones or want to purchase stones later, this option is for you.
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Hapstone RS Opti Kit
Silicon Carbide Sharpening stones. The stones are made of silicon carbide and are designed for the hardest steels (up to 65 HRC).
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Hapstone RS Boride Kit
The set of Boride stones is collected from various series and is intended for sharpening of knives from any steels. The set includes 5 stones with a grain size: 150, 220, 400, 600, 1200 (FEPA), which will be enough for all stages of sharpening, from peeling to the final sharpening. Smooth reduction of grain, from stone to stone, guarantees efficient sharpening with minimal time.
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Hapstone RS Naniwa Kit
Chosera is a high-end series from Naniwa made of aluminum oxide with the magnesia binder. The magnesia binder gives Chosera excellent sharpening quality, performance, and high wear resistance.
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Hapstone RS Shapton Kit
Shapton Pro (Kuromaku) is a high-end series from Shapton. Stones are universal and can be used to sharpen knives of any steel including high carbon, vanadium, and chromium steels.
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Hapstone RS Premium Diamond Kit
Hapstone Premium Diamond can be used to sharpen knives made of any material, without losing their properties for a long time. As the grindstone wears out, new diamond particles are exposed. The stones are mounted on blanks made of high-quality aviation aluminum. Diamond is ideal for modern “super steels” and for the sharpening of ceramic knives. 100% concentration.
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Hapstone RS Premium CBN (elbor) Kit
Hapstone CBN Diamond can be used to sharpen knives made of any material. CBN grains work softer and more productively, while not leaving unwanted scratches on the cutting-edge during the sharpening of a knife. Excellent mirror finish. As the grindstone wears out, new diamond particles are exposed. The stones are mounted on blanks made of high-quality aviation aluminum. 100% concentration.
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Add-ons
Additional options for knife sharpening can be useful to improve the sharpening process and ensure the best possible result.
Whole milled angled clamps – Complete your system with an extra pair of clips at an attractive price. The clamps will provide additional knife retention.
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Digital Angle Gauge – It’s very important to keep a sharpening angle consistent on a guided knife sharpener. The angle should not change when replacing one sharpening stone to another.
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Roll Bag for 6 stones – is a quality and durable accessory designed to store and transport your sharpening stones. The bag is made of durable 600 D nylon, which protects the stones from damage and maintains the bag’s stable shape. The bag has a convenient design with pockets to hold six sharpening stones.
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Case for stones – Wooden storage case made of plywood holds and protects your stones. A case for your sharpening stones keeps them organized and in one place. Thus, you won’t have to worry about losing or misplacing them. It will be a great tool for anyone who needs to sharpen knives, scissors, or other cutting tools on a regular basis.
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Dressing Stone – is a perfect tool to clean and refresh sharpening stones.
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Cowhide Leather Strop – enhances the cutting edge by correcting small nicks and smoothing grooves. The working surface is made of a very smooth high-quality cowhide.
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Hex screwdriver for clamps – If you use your sharpener on a regular basis, hex screwdrivers will make your life comfortable.
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Silicone mat 15 х 11″ – The large area of the silicone mat allows you to easily place on it the accompanying sharpening accessories used in the course of work – slurry, nagura, cleaning stones, etc.
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What’s included?
The delivery pack contains everything you need to start sharpening your knives immediately.
A ready-to-operate Hapstone RS knife sharpener
- Hapstone RS knife sharpening system
- Shipping box
- User manual
Shipping is not included in the cost of the reward and is paid after the completion of the campaign in the Pledge manager. You can see the estimated shipping costs below.
Time Line
This is a brief history of how Hapstone began its journey from the first prototype of the M2 series to the beginning of a new era in the world of sharpening – Hapstone RS system.
Ukrainian team of Hapstone:
Production technology:
We are the team that has been involved in the manufacture of knife sharpeners for many years already. We have developed a new model of a sharpener, which took into account the wishes of previous users.
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If you have questions or comments, please leave a message in the comments.
