Attention. The second revision of Hapstone M2 implements the linear ball-bearing pivot unit. There is a $30 price difference between Revision 1 and Revision 2. Owners of Revision 1 can purchase the linear ball-bearing pivot unit separately. Revision 1 is selling while stock lasts.
The metal pivot unit with the linear ball-bearing provides extra smooth shaft movement and requires no lubrication or cleaning.
Hapstone M2 is the new middle-stream knife sharpener from Hapstone, the supplier of successful Hapstone V7. Focusing on what matters most for knife sharpening enthusiasts, Hapstone M2 is a combination of precision, durability and great value.
The linear bearing equipped instrument, is by far the smoothest, and virtually play-free, guided rod system I've used thus far. There is no vibration, or perceivable movement, but its able to simultaneously exhibit extremely precise and smooth reciprocating, linear action.
Daniel Gigli, Quality Technician/Engineer
These specifications enable Hapstone to deliver an affordable high-precision knife sharpener to the market.
The manufacturer provides the 5-year warranty on Hapstone M2 knife sharpeners. You can be sure of the reliability of the devices and support from the manufacturer for the entire period of use.
Gritomatic handles warranty support for Hapstone sharpeners in the USA.
You can purchase a Hapstone M2 in a bundle with one of our stone sets. If you already have a collection of sharpening stones, or if you plan to purchase stones of your choice in the future, choose the Basic bundle.
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.
Basic |
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Hapstone 220 Hapstone 400 Hapstone 1200 |
Silicon Carbide |
Simple stones for learning knife sharpening All stones are mounted on blanks |
Diamond |
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Venev Diamond 80 + 150 Venev Diamond 240 + 400 Venev Diamond OCB 800 + OCB 1200 |
Synthetic diamond |
All diamonds are dual-sided. Six grits total. For all steels. |
Silicon Carbide |
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Gritomatic Silicon Carbide 120 Gritomatic Silicon Carbide 240 Gritomatic Silicon Carbide 600 Gritomatic Silicon Carbide 1000 Gritomatic Silicon Carbide 2500 |
Silicon Carbide |
For medium and hard steels (58-65 hRC) All stones are pre-lapped and mounted on blanks |
Aluminum Oxide |
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Gritomatic Aluminum Oxide 120 Gritomatic Aluminum Oxide 240 Gritomatic Aluminum Oxide 600 Gritomatic Aluminum Oxide 1000 Gritomatic Aluminum Oxide 2500 |
Aluminum Oxide |
For medium and soft steels (up to 59 hRC) All stones are pre-lapped and mounted on blanks |
Hapstone M2 |
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Stones up to 150 mm |
Sharpening Angles from 8° to 45° |
Target Precision 0.1° |
Universal Stone Holder |
Vertical Blade Support |
Pivot Unit with Full 360° Rotation |
Open Neodymium Magnets |
Option: Thickness Compensator |
No Stopper Rings |
Option: Fine-Tuning Adapter |
No Convex Rod |
5-years Warranty |
Hapstone V7 |
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Stones up to 210 mm |
Sharpening Angles from 11° to 47° |
Target Precision 0.1° |
Auto-Adjustable Universal Stone Holder |
No Vertical Blade Support |
Pivot Unit with 120° Rotation |
Rubber Coated Neodymium Magnets |
Thickness Compensator |
Spring Assisted Stopper Rings |
Option: Fine-Tuning Adapter |
Option: Convex Rod |
5-years Warranty |
Here is a brief guideline for stone bundle choosing.
Hapstone M2 knife sharpener is shipped disassembled and requires assembling. Please refer to User's Guide.
Basic stones are made of silicon carbide. Water is required to use. Immerse all stones in water for 10 minutes before use and keep them wet during the work. Do not keep the stones in water for a long time.
Bundled stones are made of silicon carbide. Water is required to use. Immerse all stones in water for 10 minutes before use and keep them wet during the work. Do not keep the stones in water for a long time.
Stone set is optimized for sharpening knives made of hard steels. You can use 120 and 240 grit stones on soft steel knives. Using 600, 1000 and 2500 grit stones with steels with hardness less than 58 hRC is not recommended.
Bundled stones are made of aluminum oxide. Water is required to use. Immerse all stones in water for 10 minutes before use and keep them wet during the work. Do not keep the stones in water for a long time.
Stone set is optimized for sharpening knives made of soft steels. Using the stones with steels with hardness more than 59 hRC is not recommended.
Bundled diamonds are dual-sided, one side is coarsier than other. Three stones have total six grits. It is little bit tricky to identify grits. You can find identification marks on side face. The mark is grit specified in FEPA-F scale with arrow symbol facing to corresponding surface. A finer side is always copper colored.
All diamonds are bonded, not coated. It means you can clean, refresh, flatten and lap your diamond like any other synthetic stone.
It's recommended to use water as lubricant to prevent stone loading.
Do you have Wicked Edge knife sharpening system and a large collection of stones?
Migrating to Hapstone or owning multiple sharpening systems will be very easy for you. With the Guide Rod, you can use all your Wicked Edge stones and paddles with Hapstone knife sharpener.
Wicked Edge owners will get FREE Guide Rod when purchasing Hapstone knife sharpener on Gritomatic.
The time you make an order, send us a photo of your Wicked Edge unit with a paper sheet with the current date.
If you have a question regarding this product, please feel free to ask.