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Hapstone RS
BLACK
Knife Sharpener

Name: Hapstone RS [BLACK] Knife Sharpener
Brand: Hapstone
SKU: HAPSTONE-RS-BLACK-BAREBONE
Price: 291.0 USD
Availability: InStock
Rating: 4.4 (10 reviews)

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In Stock, Made by Hapstone, Made in Ukraine, ⚔️Hapstone Sharpeners, ⚔️Sharpening Systems, 📘Hapstone RS, 🛒Full Catalog

Brand

Hapstone

Sharpener Configuration

Original Kit

SKU: HAPSTONE-RS-BLACK-BAREBONE

AVAILABILITY: In stock (20 items)

$291.00 USD

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Description

BLACK

is a family of extended custom kits with the most useful and the most practical components. Hapstone RS

BLACK

features four angled clamps that can be turned inward (for small knives) or outward (for long knives)

🔪4x Angled Clamps
Thickness Compensator
Spring-Assisted Stopper
📐Digital Angle Gauge (battery not included)
🔩3-mm Hex Screwdriver (for clamps)
🔩Spare Clamp Screws

Specs

⚖️Weight: 5.5 lbs (2.5 kg)
📏Dimensions: 11"х5.5"х7.4" (280х143х188mm)
🔪Blade length: 1.6" to 9.2" (40 to 230mm)
🗜️Maximum blade thickness: 0.25" (6mm)
📐Sharpening angle range: 12° to 30° (🔬Confirmed: 10° to 35°)

Customer Reviews

Michael O.

This is a follow-up review to an initial impressions review I left a few days ago. First, Gritomatic was great to deal with! I got the RS Black on sale and dealing with the company on the phone was great. Shipping was fast too! As for the sharpener, I like it. It's well made, and so far seems to work well. It's a bit difficult to match the angle on both sides, but the difference is typically within .1 or .2, which I guess is not bad. My only gripe so far is that the Black package isn't worth it. The angle gauge is pretty cheap (I substituted it with a better Klein gauge), and the plastic-handled hex driver included is junk and unusable (it fits too loosely to be of any use). It might have been better to just buy the RS base version and add the two extra clamps, thickness compensator, and stopper to the order. Oh well. In any event, I'm glad I purchased this sharpener - it's my first "high-end" knife sharpener.

Michael

Dealing with Gritomatic was fine! It was easy to order the RS Black and, and I when I also included in my order an item that was already included in the kit, it was easy to get a refund before the order shipped. The young woman I spoke to on the phone was both helpful and friendly! The sharpener was delivered in just a few days (Georgia to New York State), with a weekend in between when I ordered it and when it arrived. As for the RS Black itself, I do like it and it's much better than the angled sharpener I've been using up to this point. It does seem to be fairly well made, but the quality is not as great as alot of the videos made it out to be. My biggest complaint is that the RS Black doesn't offer much over the basic RS version that you can't get by ordering the basic version and then ordering the other pieces in the kit separately. By that I mean this: The digital angle gage is very low end, and it does not come with batteries. The ball-end hex driver is plastic junk. It is NOT the aluminum handled one that is pictured on the website. In fact, I can't use it because the business end (where it inserts into the screws) is a smaller diameter than the upper part of the shaft. It's supposed to be 3mm, but it's less than that on the end you insert into the screws. I probably should have ordered the basic version and separately bought the individual pieces that make up the kit (stopper, thickness compensator, extra clamps), and then bought a better angle gage (for not much more $). I maybe would have spent the same $ or a little more, but I would have gotten a better angle gage. As it is, I wound up ordering a better one anyway. Oh well. That said, the sharpener looks good, but I wouldn't pay full price for it (I was able to get it while it was on sale). And, Gritomatic appears to be a good company to deal with! Good service and fast shipping...

Lawrence Z.

Needs improved knife clamps. Knife tilts when u are sharpening

Carlos A.

Excellent product at an excellent price.

Bart R.

I had been reading and comparing information and reviews from many knife users, from work sharp to wicked sharp. The two on top of my list were the TSProf KO3 pro and the Hap stone RS Black. I decided the Hap stone RS Black with its versatility for stones, compact design and attention to detail and quality would fit my needs the best. Please forgive me, I cant recall who I spoke with, They were very friendly and happy to answer questions and give me a recommendation for what I would find most useful and also guided me on the diamond plates that would be the most useful for the knives I will be sharping. It MAKES A BIG DIFFERENCE TO BE ABLE TO TALK TO A PERSON WHO IS KNOWLEDGEABLE AND CAN MAKE A QUALIFIED RECOMMENDATION, AND IS WILLING TO TAKE TIME OUT OF THEIR BUSY DAY TO GUIDE A CUSTOMER IN THE RIGHT DIRECTION. I will be a loyal customer for the rest of my life. Customer service, honesty, means the most to me. I explained I have a Ken Onion work sharp with the larger belt attachment, It works well for tools and some knives, but does not allow for an orig knife edge. It was explained to me the benefits of using a precise adjustable sharpener. I received the RS Black in 2 days, it was packed extremely well all parts were there with diamond plates, digital angle finder, and tools to assemble, which took me approx.6 minutes. This sharpener is really well made very sturdy and the base is heavy enough to use with out worry of tipping or moving around. I have not had much time to use the RS Black, as of yet, but as I get comfortable using this to sharpen various knives, I will post some pictures or video. I am extremely pleased with Gritomatic Co. the Hapstone RS Blk. and the friendly, patient, professional and fantastic customer service, as well as the very competitive pricing. Thank you so much. Bart Rivkin

James D.

I bought this Hapstone RS Black to re-profile knives . I thought that I was pretty good at sharpening. This makes it Better and anyone can do it with a little practice!

Jeffrey K.

Recently upgraded my sharpening system to the Hapstone RS Black kit and a set of the Hapstone premium CBN stones. I absolutely love this setup can't say enough good things about it. Build quality seems top notch and the CBN stones are fantastic. Hapstone recommended using their magic oil with the CBN stones and that was a really great recommendation. I also purchased the case for the system and that is also very convenient and high quality if you sharpen infrequently and want to be able to safely store everything.

Matthew G.

I have been hand sharpening on stones with decent outcomes for quite some time. However, recently I sharpened my CRK Inkosi Tanto and I was a bit disappointed with the results. The Tanto edge was more convex than I would have preferred and I wasn’t regularly hitting the edge when stropping. I use this knife for chisel cuts in wood so I really want a clean, sharp edge. I was not pleased with my hand sharpening results. I decided I didn’t want to mess around anymore with my nice knives and possibly shortening their life span so I bought the RS Black. After a practice go on a pretty hammered blade, I sharpened the Tanto Inkosi applying all my hand sharpening techniques. Wow!!! This is the sharpest I’ve ever gotten an edge. Perfection. I took it to 1000 grit with the premier diamond stones (TSPROF), with light strop at the end. There is still a light visible scratch pattern but the knife slices like a laser. I’m going to buy the strops….. Next I sharpened my Umnumzaan with perfect results, applying what I learned from the Inkosi. I lowered then angle on both knives from factory. The RS is so easy to use. It’s small so it doesn’t take much space in my kitchen cabinet. This thing is awesome. Buy this thing if you have nice knives. It’s well worth the money. It’s pretty fast. And perfectly consistent unlike the human hand. (At least mine.) And it’s a quality piece of kit.

Robert W.

My first sharpener that is not a flat stone

Robert W.

About Hapstone RS

Introducing the Hapstone RS, a new knife sharpening system born from the expertise of the Ukrainian team at Hapstone. Astonishing efficiency and user-friendly operation characterize this tool. For those seeking razor-sharp blades in the kitchen, repair shop, or for any hobbies, Hapstone RS stands as the ideal option.

Five years of diligent experience were dedicated to the conceptualization and design of this top-tier sharpening system, leading to the conclusion that Hapstone RS is the finest knife sharpener on the market due to its unique design. The versatility of this sharpening system accommodates a broad spectrum of knife sizes and thicknesses. From a diminutive paring knife to a substantial chef's knife, this system manages all with ease. Supporting a range from 40 to 230mm in length and up to 6mm in thickness, the sharpening system capably sharpens all knife types, from slender fillet knives to hefty cleavers. Moreover, the innovative design ensures the secure placement of the knife during the sharpening process, guaranteeing uniform and consistent sharpening every time.

The system features an innovative magnetic quick release 360° guide rod, which offers complete sharpening freedom. Developed with a focus on durability and performance, the guide rod uses high-grade materials for longevity. Its magnetic attachment system provides a steady and stable connection, and its compact, lightweight design facilitates easy use.

When bringing the Hapstone RS to life, the utmost attention was paid to details and materials to guarantee optimal performance and durability. Whole milled angled clamps consist of aircraft-grade aluminum, while high-quality stainless steel forms the guides, ensuring durability and operational stability.

The stone holder, screws, clamps, and the frame of the rotating module consist of solid aircraft aluminum. A robust 8mm steel base with silicone feet ensures absolute stability for the sharpener.

A 5-year warranty accompanies the Hapstone RS knife sharpeners, instilling confidence in the reliability of the devices and assuring manufacturer support for the entire period of use.

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Stone Bundles

Basic Diamond
💎Gritomatic Diamond 240
💎Gritomatic Diamond 600
💎Gritomatic Diamond 1000
Inexpensive 20-mm wide diamond plates are mounted on aluminum blank with laser engraving. For all steels.

Optimal Diamond
💎TSProf Diamond 150
💎TSProf Diamond 220
💎TSProf Diamond 400
💎TSProf Diamond 600
💎TSProf Diamond 1000
25-mm wide diamond plates are mounted on aluminum blank with laser engraving. For all steels.

Venev Ursa
💎Ursa Diamond 80 + 150
💎Ursa Diamond 240 + 400
💎Ursa Diamond 800 + 1200
Inexpensive but powerful diamond set for all users. 6" resin-bonded dual-sided narrow diamonds. Six grits 80 to F1200. For all steels. To be used with water.

Venev Centaur
💎Centaur Diamond 100 + 240
💎Centaur Diamond 400 + 800
💎Centaur Diamond 1200 + 1500
Mid range diamond set for all users. 6" resin-bonded dual-sided diamonds. Six grits 100 to F1500. For all steels. To be used with water.

Silicon Carbide
🪨Gritomatic Silicon Carbide 120
🪨Gritomatic Silicon Carbide 240
🪨Gritomatic Silicon Carbide 600
🪨Gritomatic Silicon Carbide 1000
🪨Gritomatic Silicon Carbide 2500
Silicon carbide stone set for hard steels (over 58 hRC). All stones are pre-lapped, mounted on aluminum blanks, and easy to use. To be used with water.

Boride
🪨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 soft and medium-hard steels. Can be used with water or oil.

Michael O.

Michael

Lawrence Z.

Needs improved knife clamps. Knife tilts when u are sharpening

Carlos A.

Excellent product at an excellent price.

Bart R.

James D.

I bought this Hapstone RS Black to re-profile knives . I thought that I was pretty good at sharpening. This makes it Better and anyone can do it with a little practice!

Jeffrey K.

Matthew G.

Robert W.

My first sharpener that is not a flat stone

Robert W.

Questions and Answers

Hapstone RS
BLACK
Knife Sharpener

Specs

Basic Diamond

Optimal Diamond

Venev Ursa

Venev Centaur

Silicon Carbide

Boride

Hapstone Premium CBN Stone 6" x 1"

Soft Case for 12 Edge Pro Stones

Advanced Stone Holder with Linear Bearing for Hapstone RS and Work Sharp PPA

All-Metal Universal Stone Holder for Professional Precision Adjust

Silicon Carbide Powder

💡Information

📖Support

🙈Terms

Hapstone RS BLACK Knife Sharpener

Specs

Basic Diamond

Optimal Diamond

Venev Ursa

Venev Centaur

Silicon Carbide

Boride

Hapstone Premium CBN Stone 6" x 1"

Soft Case for 12 Edge Pro Stones

Advanced Stone Holder with Linear Bearing for Hapstone RS and Work Sharp PPA

All-Metal Universal Stone Holder for Professional Precision Adjust

Silicon Carbide Powder

💡Information

📖Support

🙈Terms

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Hapstone RS
BLACK
Knife Sharpener