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RECOMMENDED SETS OF SHARPENING STONES (150-25-7-3-4)
RECOMMENDED SETS OF DIAMOND AND CBN STONES, METALL AND COMBINED BONDS
 
Recommended selections of sharpening stones to make your choice easier:

- Highlight your operations: do you have "forming cutting edge" operation ?  What surface quality do you need, just "nice at eyesight" (polishing) or mirror (the finest polishing). So skip sets with unnecessary grains. 
- What is your workload ? If from time to time - skip metal bond stones, they are more expensive, but lasts longer. 
- CBN combined bond stones are recommended for all types of steels;
- The more knives you sharpen, the more you need stones, to keep steps in working operations (distances between grain sizes) shorter. 
 

Recommended set # 1:

  Diamond stone 150x25x7x3, combined bond, grain size 200/160 - forming the cutting edge
  Diamond stone 150x25x7x3, combined bond, grain size 100/80 - rough sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 40/28 - fine sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 20/14 - fine lapping
  Diamond stone 150x25x7x3, combined bond, grain size 7/5 - the finest lapping
  Diamond stone 150x25x7x3, combined bond, grain size 3/2 - polishing.

Recommended set # 2:

  Diamond stone 150x25x7x3, combined bond, grain size 200/160 - forming the cutting edge
  Diamond stone 150x25x7x3, combined bond, grain size 100/80 - rough sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 40/28 - fine sharpening
  Diamond stone  150x25x7x3, combined bond, grain size 20/14 - fine lapping
  Diamond stone 150x25x7x3, combined bond, grain size 7/5 - the finest lapping
  Diamond stone 150x25x7x3, combined bond, grain size 3/2 - polishing.
  Diamond stone 150x25x7x3, combined bond, grain size 1/0 - fine polishing.
  Diamond stone 150x25x7x3, combined bond, grain size 0.25 / 0 - the finest polishing.

Recommended set # 3:

  Diamond stone 150x25x7x3, combined bond, grain size 200/160 - forming the cutting edge
  Diamond stone 150x25x7x3, combined bond, grain size 125/100 - rough sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 63/50 - semi-finishing
  Diamond stone 150x25x7x3, combined bond, grain size 28/20 - fine sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 14/10 - fine lapping
  Diamond stone 150x25x7x3, combined bond, grain size 7/5 - the finest lapping
  Diamond stone 150x25x7x3, combined bond, grain size 3/2 - polishing.

 Recommended set # 4:

  Diamond stone 150x25x7x3, combined bond, grain size 200/160 - forming the cutting edge
  Diamond stone 150x25x7x3, combined bond, grain size 125/100 - rough sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 63/50 - semi-finishing
  Diamond stone 150x25x7x3, combined bond, grain size 28/20 - fine sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 14/10 - fine lapping
  Diamond stone 150x25x7x3, combined bond, grain size 5/3 - polishing
  Diamond stone 150x25x7x3, combined bond, grain size 2/1 - fine polishing.
  Diamond stone 150x25x7x3, combined bond, grain size 0.5 / 0 - the finest polishing.

Recommended set # 5:

  Diamond stone 150x25x7x3, combined bond, grain size 100/80 - rough sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 40/28 - fine sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 20/14 - fine lapping
  Diamond stone 150x25x7x3, combined bond, grain size 7/5 - the finest lapping

 Recommended set # 6:

  Diamond stone 150x25x7x3, combined bond, grain size 125/100 - rough sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 63/50 - semi-finishing
  Diamond stone 150x25x7x3, combined bond, grain size 28/20 - fine sharpening
  Diamond stone 150x25x7x3, combined bond, grain size 14/10 - fine lapping
  Diamond stone 150x25x7x3, combined bond, grain size 7/5 - the finest lapping

 Recommended set # 7:

   Diamond stone 150x25x3, metal bond, 100%, grain size 160/125 - rough sharpening
   Diamond stone 150x25x3, metal bond, 100%, grain size 80/63 - semi-finishing
   Diamond stone 150x25x3, metal bond, 100% ,grain size 40/28 - fine sharpening
   Diamond stone 150x25x3, metal bond, 100%, grain size 20/14 - fine lapping
   Diamond stone 150x25x3, metal bond, 100%, grain size 10/7 - the finest lapping
   Diamond stone 150x25x3, metal bond, 100%, grain size 5/3 - polishing.

   Recommended set # 8:

  CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
  CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
  CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
  CBN stone 150x25x7x3 combined bond, grain size 20/14 - fine lapping
  CBN stone 150x25x7x3 combined bond, grain size 10/7 - the finest finishing
  CBN stone 150x25x7x3 combined bond, grain size 5/3   - polishing
  CBN stone 150x25x7x3 combined bond, grain size 2/1  - fine polishing.

Recommended set # 9:

CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
CBN stone 150x25x7x3 combined bond, grain size 20/14   - fine lapping
CBN stone 150x25x7x3 combined bond, grain size 10/7 - the finest finishing
CBN stone 150x25x7x3 combined bond, grain size 5/3   - polishing
CBN stone 150x25x7x3 combined bond, grain size 2/1   - fine polishing.
CBN stone 150x25x7x3, combined bond, grain size 0.5 / 0 - the finest polishing.

Recommended set # 10:

CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
CBN stone 150x25x7x3 combined bond, grain size  20/14   - fine lapping
CBN stone 150x25x7x3 combined bond, grain size 7/5   - the finest finishing
CBN stone 150x25x7x3 combined bond, grain size 3/2   - polishing

Recommended set # 11:

CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
CBN stone 150x25x7x3, combined bond, grain size 20/14   - fine lapping
CBN stone 150x25x7x3, combined bond 7/5 grain size - the finest finishing
CBN stone 150x25x7x3, combined bond 3/2 grain size - polishing
CBN stone 150x25x7x3, combined bond, grain size 1/0  - fine polishing.

Recommended set # 12:

CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
CBN stone 150x25x3, metal bond, grain size 125/100 - rough sharpening
CBN stone 150х25х3, metal bond, , grain size 63/50 - semi-finish sharpening
CBN stone 150x25x3, metal bond, grain size 28/20 - fine finishing
CBN stone 150x25x7x3, combined bond, grain size 14/10 - fine lapping
CBN stone 150x25x7x3, combined bond, grain size 7/5 - the finest finishing
CBN stone 150x25x7x3, combined bond, grain size 3/2 - polishing.

Recommended set # 13:

CBN stone 150x25x3, metal bond, grain size 125/100 - rough sharpening
CBN stone 150х25х3, metal bond, grain size 63/50 - semi-finish sharpening
CBN stone 150x25x3, metal bond, grain size 28/20 - fine finishing
CBN stone 150x25x7x3, combined bond, grain size 14/10 - fine lapping
CBN stone 150x25x7x3, combined bond  grain size 7/5 - the finest finishing

Recommended set # 14:

CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
CBN stone 150x25x7x3, combined bond, grain size 20/14 - fine lapping
CBN stone 150x25x7x3, combined bond, grain size 10/7 - the finest finishing

 
Recommended set # 15:

 
CBN stone 150x25x7x3, combined bond, grain size 125/80 - rough sharpening
CBN stone 150x25x7x3, combined bond, grain size 63/50 - semi-finish sharpening
CBN stone 150x25x7x3, combined bond, grain size 28/20 - fine finishing
CBN stone 150x25x7x3, combined bond, grain size 14/10 - fine lapping
CBN stone 150x25x7x3, combined bond, grain size 7/5 - the finest finishing

Recommended set # 16:
 
CBN stone 150x25x7x3, combined bond, grain size 200/160 - forming the cutting edge
CBN stone 150x25x7x3, combined bond, grain size 125/100 - rough sharpening
CBN stone 150x25x7x3, combined bond, grain size 63/50 - semi-finish sharpening
CBN stone 150x25x7x3, combined bond, grain size 28/20 - fine finishing
CBN stone 150x25x7x3, combined bond, grain size 14/10 - fine lapping
CBN stone 150x25x7x3, combined bond, grain size 7/5 - the finest finishing
CBN stone 150x25x7x3, combined bond, grain size 3/2 - polishing.

Recommended set # 17:

  CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
  CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
  CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
  CBN stone 150x25x7x3, combined bond, grain size 20/14 - fine lapping
  CBN stone 150x25x7x3, combined bond, grain size 7/5 - the finest finishing
  CBN stone 150x25x7x3, combined bond, grain size 3/2   - polishing
  CBN stone 150x25x7x3, combined bond, grain size 1/0  - fine polishing.



Recommendations on selection of sharpening stones
How to maintain sharpening stones 


Download full catalog  

Bonds 

Metal bond: M2-01, copper-tin 
Combined bond: composition depends on grain size, does not require cooling, but you may use water (or water based cooling liquids) as lubricant.

Grain size: Please select from the list, or read Technical information.  
The finest grain size is 0.5/0 micron (fine polishing) , the coarsest - 200/160 micron (rough grinding). 
In grain selection window you see grain sizes according to standards:
MICRON = MESH(GRIT) = FEPA

Grain concentration: 100%
Do not waste your money on cheaper stones with lower/unknown concentration.
  
Available on stock 

Application
For knife sharpening using such sharpeners as Hapstone, Edge Pro. etc.

Preparation of sharpening stones
Stones with grits finer 3 microns may require preparation (dressing), or they will be self-polished after sharpening of 30-50 knives. Then they will be of gold color and work well.
This is common issue for all manufacturers: abrasive grains are covered with bond, so you need to "release" them. 

  
Dressing / preparation of cubic boron nitride stone metal bond

Selection of SiC powders for  dressing  of sharpening stones

StoneStarting gritFinishing grit
500/400 μ = 35/40= D501 F16 (1230 μ)F24 (745 μ)
400/315 μ = 40/45= D426F16 (1230 μ)F46 (370 μ)
315/250 μ = 50/60= D301 F24 (745 μ)F46 (370 μ)
250/200 μ = 60/70= D251F24 (745 μ)F60 (260 μ)
200/160 μ = 70/80= D213F36 (525 μ)F60 (260 μ)
160/125 μ = 100/120= D151 F46 (370 μ)F80 (180 μ)
125/100 μ = 120/140= D126  F60 (260 μ)F100 (129 μ)
100/80 μ = 140/170= D107F60 (260 μ)F120 (109 μ)
 80/63 μ = 170/200= D91  F80 (180 μ)F150 (82 μ)
63/50 μ = 230/270= D64 F100 (129 μ)F180 (69 μ)
50/40 μ = 270/325= D54  F120 (109 μ)F220 (58 μ)
40/28 μ = 550= M40F150 (82 μ)F240 (46 μ)
28/20 μ = 650= M25  F180 (69 μ)F320 (30 μ)
20/14 μ = 1100= M20F240 (46 μ)F400 (18 μ)
14/10 μ = 1500= M16  F320 (30 μ)F400 (18 μ)
10/7 μ = 1700= M10F400 (18 μ)F600 (10 μ)
7/5 μ = 3000= M6.3  F600 (10 μ)F800 (6,7 μ)
5/3 μ = 4000= M4F600 (10 μ)F800 (6,7 μ)
3/2 μ = 6000= M1.5 F800 (6,7 μ)F1200 (3 μ)
2/1 μ = 10000F800 (6,7 μ)F1200 (3 μ)
1/0 μ   F800 (6,7 μ)F1200 (3 μ)
0.5/0 μ   F800 (6,7 μ)F1200 (3 μ)


Use and cleaning of sharpening stones
Use any comfortable oil (baby, olive..) to prevent glazing. If glazed - clean with alcohol and toothbrush.

Maintenance (in 1-2 years), flattening/revitalization:
- resin bond stones - with silicon (silica) carbide powders on glass plate,
- metal bond stones - with FeCl.
   - 10 mins setting in 25% mixture (25 gr FeCl per 75 gr of water),
   - 10 mins polish movements (carefully draw "8") on glass plate.
  
Free shipping
Contact us for combined shipping  quote or bulk discounts. 

Buy these stones on


Please read more about:

Shipping
Warranty, returns and refunds
Grain size conversion, selection and use of your tool

0.00€
GIFT BOX, 9+3 CBN SHARPENING STONES (Gift12)

GIFT BOX:  CBN, BORAZON, CUBIC BORON NITRIDE
SHARPENING STONES  

 
12 sharpening stones in wooden box: 9 cubic boron nitride stones plus 3 other. Stones are mounted on aluminum blanks. This set will serve you for decades. 
 
Wooden box for storage and transportation of  12 sharpening stones.    
Length: 185 mm, Width: 195 mm, Height: 40 mm, Number of cells: 12 
The maximum thickness of the stone: 7 mm. 

Content of the box
  

1. CBN 150x25x7x3, Metal bond, 150%, grain size 315/250 - forming of cutting edge
2. CBN 150x25x7x3, Metal bond, 100%, grain size 200/160 - forming of cutting edge
3. CBN 150x25x7x3, Metal bond, 100%, grain size 125/100 - rough sharpening
4. CBN 150x25x7x3, Metal bond, 100%, grain size 80/63 - grinding
5. CBN 150x25x7x3, Metal bond, 100%, grain size 50/40 - fine grinding
6. CBN 150x25x7x3, Combined bond, 100%, grain size 28/20 - polishing
7. CBN 150x25x7x3, Combined bond, 100%, grain size 14/10 - polishing
8. CBN 150x25x7x3, Combined bond, 100%, grain size  7/5 - fine polishing
9. CBN 150x25x7x3, Combined bond, 100%, grain size  3/2 - fine polishing
10. Italian Black Slate 152x25x7x4 mm, natural stone for superfinishing operations
11. Leather on aluminum blank 160x25x7x4
12. Linden on an aluminum blank 160x25x7x4

Description of products in this set.

CBN (cubic boron nitride, borazon) stones
are well known for high hardness and resistance to high temperatures and various chemical components of alloys and steels.
  
Comparing CBN and diamond grains, we must admit, that  CBN works softer and more productively, while at the same time it does not cause yellowing scratches on the cutting edge. This is due to the fact that CBN has a crystal structure in the shape of an eyepiece - the number of cutting edges is greater with less sharp corners - resulting in softness during processing and high productivity. Diamond has a crystal structure in the form of a tetrahedron, with fewer cutting edges and sharper corners of the crystal, which leads to more "aggressive" work of the diamond  
 
The following grains are available(please contact us to change set content): 0.5/0; 1/0; 2/1; 3/2; 5/3; 7/5; 10/7; 14/10; 20/14; 28/20; 40/28; 50/40; 63/50; 80/63; 100/80; 125/100; 160/125; 200/160; 250/200; 315/250. 

Italian Black Slate  -   has good finishing properties, which are close to dark Thuringian shales, but Italian Black Slate  is a little harder, which is undoubtedly an advantage when working in apexoid type sharpeners. The slate gives a very moderate fine white suspension. It works with all steels, removing scratches on the cutting edge, and exposing their  structures, adding sharpness.

152 mm — length, 25 mm — width, 7 mm — total thickness, 
4 mm - the thickness of the working layer, 3 mm - thickness of the aluminum blank.
 
Superfinishing stone, it is recommended to switch to it after  abrasive with a grain of at least F1000-F2000, or superabrasive (CBN, diamond) 5/3, 3/2, 2/1, 1/0

Each stone is equipped with a slur (a small stone for guiding the suspension). The recommended lubricants/coolants are water, oil.

Quality Italian leather on  aluminum blank — polished and does not require additional processing. It is used for applying polishing paste and further sharpening the cutting edge of the knife. It can also be used without paste.
Length: 160 mm, Width: 25 mm, Thickness: 7 mm

Linden on a  aluminum blank - for applying polishing paste and  polishing the cutting edge of the knife.
Length: 160 mm, Width: 25 mm, Total thickness: 7 mm, The thickness of the aluminum blank - 3 mm.


Recommendations on selection of sharpening stones
How to maintain sharpening stones 


  


Preparation of sharpening stones
Stones with grits finer 3 microns either require preparation (dressing), or they will be self-polished after sharpening of 30-50 knives. Then they will be of gold color and work well.
This is common issue for all manufacturers: abrasive grains are covered with bond, so you need to "release" them. 
"Stone preparation" is not available because of war.  

Selection of SiC powders for  dressing  of sharpening stones

StoneStarting gritFinishing grit
500/400 μ = 35/40= D501 F16 (1230 μ)F24 (745 μ)
400/315 μ = 40/45= D426F16 (1230 μ)F46 (370 μ)
315/250 μ = 50/60= D301 F24 (745 μ)F46 (370 μ)
250/200 μ = 60/70= D251F24 (745 μ)F60 (260 μ)
200/160 μ = 70/80= D213F36 (525 μ)F60 (260 μ)
160/125 μ = 100/120= D151 F46 (370 μ)F80 (180 μ)
125/100 μ = 120/140= D126  F60 (260 μ)F100 (129 μ)
100/80 μ = 140/170= D107F60 (260 μ)F120 (109 μ)
 80/63 μ = 170/200= D91  F80 (180 μ)F150 (82 μ)
63/50 μ = 230/270= D64 F100 (129 μ)F180 (69 μ)
50/40 μ = 270/325= D54  F120 (109 μ)F220 (58 μ)
40/28 μ = 550= M40F150 (82 μ)F240 (46 μ)
28/20 μ = 650= M25  F180 (69 μ)F320 (30 μ)
20/14 μ = 1100= M20F240 (46 μ)F400 (18 μ)
14/10 μ = 1500= M16  F320 (30 μ)F400 (18 μ)
10/7 μ = 1700= M10F400 (18 μ)F600 (10 μ)
7/5 μ = 3000= M6.3  F600 (10 μ)F800 (6,7 μ)
5/3 μ = 4000= M4F600 (10 μ)F800 (6,7 μ)
3/2 μ = 6000= M1.5 F800 (6,7 μ)F1200 (3 μ)
2/1 μ = 10000F800 (6,7 μ)F1200 (3 μ)
1/0 μ   F800 (6,7 μ)F1200 (3 μ)
0.5/0 μ   F800 (6,7 μ)F1200 (3 μ)


Use and cleaning of CBN sharpening stones
Use any comfortable oil (baby, olive..) to prevent glazing. If glazed - clean with alcohol and toothbrush.

Maintenance (in 1-2 year), flattening/revitalization:
- resin bond stones - with silicon (silica) carbide powders on glass plate,
- metal bond stones - with FeCl.
There are other methods (with SiC powders..), but method with FeCl, on glass plate is the cheapest and simplest.
You may buy 100 gr. of FeCl in grain selection window. I sell it if you buy a stone.
 
Free shipping
Contact us for combined shipping  quote or bulk discounts. 

 


Please read more about:

Shipping
Warranty, returns and refunds
Grain size conversion, selection and use of your tool

830.00€
cubic boron nitride sharpening stone combined bond 150x25 200%
200% PRO CBN SHARPENING STONES 150-25-7-3 (150-25-7-3)
CBN SHARPENING STONES, CUBIC BORON NITRIDE SHARPENING STONES, CONCENTRATION 200% 
 150-25-7-3 

 
CBN (cubic boron nitride) is a generic name, there are also other names of this material, depending on manufacturer: borazon, elbor, cubonite, etc. 

CBN (cubic boron nitride) is the second-hardest material after diamond,  and has the best price-performance ratio for processing steels, comparing to other materials, including diamond, silicon carbide or aluminum oxide.  
Due to it's high resistance specs, CBN can be used dry without lubricant. This makes CBN the cleanest of the available sharpening stones.  


Length: 150 mm = 6 inch
Width:   25 mm = 1 inch
CBN height:   3 mm = 0.12 inch 
Total height (with blank):   7 mm = 0.28 inch
 
Recommendations on selection of sharpening stones
How to maintain sharpening stones 


Download full catalog  

Bonds were designed to be as wear resistant as metal bonds, but work more softly
1/0- 63/50 - copper-resin bond BP50 for polishing
> 80/63  - copper-resin BP05, wear-resistant, for grinding
 
There were issues of shedding of grains, which was visible on coarse grain sizes, so we replaced existing bond BP08 (coarse grits >160/125) for harder bond BP05.  We still have stock of CBN stones with soft BP08 bond, please contact us if interested. 
 
Grain size: Please select from the list, or read Technical information.  
The finest grain size is 0.5/0 micron (fine polishing) , the coarsest - 200/160 micron (rough grinding). 
In grain selection window you see grain sizes according to standards:
MICRON = MESH(GRIT) = FEPA

Grain concentration: 200%
200% stones were designed on request of  professional sharpeners, who wanted to sharpen faster. According to feedback, the increase of productivity was about 50%, and this was and remains a reason to pay a higher price. 
200% combined bond stones offer high sharpening speed, but wear off faster, which is visible (shedding of grains)  on coarse grain sizes:  40/28 and coarser.    
  
Flat solid block on aluminum blank.
 
Available on stock 

Application
For knife sharpening using such sharpeners as Hapstone, Edge Pro, Kazak Pro.

Preparation of sharpening stones
Stones with grits finer 3 microns either require preparation (dressing), or they will be self-polished after sharpening of 30-50 knives. Then they will be of gold color and work well.
This is common issue for all manufacturers: abrasive grains are covered with bond, so you need to "release" them. 
"Stone preparation" is not available because of war.  

Selection of SiC powders for  dressing  of sharpening stones

StoneStarting gritFinishing grit
500/400 μ = 35/40= D501 F16 (1230 μ)F24 (745 μ)
400/315 μ = 40/45= D426F16 (1230 μ)F46 (370 μ)
315/250 μ = 50/60= D301 F24 (745 μ)F46 (370 μ)
250/200 μ = 60/70= D251F24 (745 μ)F60 (260 μ)
200/160 μ = 70/80= D213F36 (525 μ)F60 (260 μ)
160/125 μ = 100/120= D151 F46 (370 μ)F80 (180 μ)
125/100 μ = 120/140= D126  F60 (260 μ)F100 (129 μ)
100/80 μ = 140/170= D107F60 (260 μ)F120 (109 μ)
 80/63 μ = 170/200= D91  F80 (180 μ)F150 (82 μ)
63/50 μ = 230/270= D64 F100 (129 μ)F180 (69 μ)
50/40 μ = 270/325= D54  F120 (109 μ)F220 (58 μ)
40/28 μ = 550= M40F150 (82 μ)F240 (46 μ)
28/20 μ = 650= M25  F180 (69 μ)F320 (30 μ)
20/14 μ = 1100= M20F240 (46 μ)F400 (18 μ)
14/10 μ = 1500= M16  F320 (30 μ)F400 (18 μ)
10/7 μ = 1700= M10F400 (18 μ)F600 (10 μ)
7/5 μ = 3000= M6.3  F600 (10 μ)F800 (6,7 μ)
5/3 μ = 4000= M4F600 (10 μ)F800 (6,7 μ)
3/2 μ = 6000= M1.5 F800 (6,7 μ)F1200 (3 μ)
2/1 μ = 10000F800 (6,7 μ)F1200 (3 μ)
1/0 μ   F800 (6,7 μ)F1200 (3 μ)
0.5/0 μ   F800 (6,7 μ)F1200 (3 μ)


Use and cleaning of CBN sharpening stones
Use any comfortable oil (baby, olive..) to prevent glazing. If glazed - clean with alcohol and toothbrush.

Maintenance (in 1-2 year), flattening/revitalization:
- resin bond stones - with silicon (silica) carbide powders on glass plate,
- metal bond stones - with FeCl.
There are other methods (with SiC powders..), but method with FeCl, on glass plate is the cheapest and simplest.
You may buy 100 gr. of FeCl in grain selection window. I sell it if you buy a stone.
 
Free shipping
Contact us for combined shipping  quote or bulk discounts. 

Buy these stones on


Please read more about:

Shipping
Warranty, returns and refunds
Grain size conversion, selection and use of your tool

97 EUR
0.00€
cbn sharpening stone combined bond 150x25
CBN SHARPENING STONES, COMBINED BOND, 150x25 (CBNST)
CUBIC BORON NITRIDE, CBN, BORAZON
HONING, SHARPENING STONES
150 х 25 х 7 x 3 x 4

CBN (cubic boron nitride)
 is a generic name, there are also other names of this material, depending on manufacturer: borazon, elbor, cubonite, etc. 
CBN (cubic boron nitride) is the second-hardest material after diamond,  and has the best price-performance ratio for processing steels, comparing to other materials, including diamond, silicon carbide or aluminum oxide.  
Due to it's high resistance specs, CBN can be used dry without lubricant. This makes CBN the cleanest of the available sharpening stones.  

Length: 150 mm = 6 inch
Width:   25 mm x = 1 inch
Total thickness:  7 mm = 0.28 inch
CBN thickness:    3 mm = 0.12 inch
Blank thickness: 4 mm = 0.16 inch

Recommendations on selection of sharpening stones
How to maintain sharpening stones  

 
Download full catalog  

Bond: innovative combined bonds to ensure the best performance, resin bond BP50 for polishing at fine sizes and metal-resin bond BP05 for grinding at coarser grain sizes. 

Grain size: Please select from the list, or read Technical information.  
The finest grain size is 0.5/0 micron (fine polishing) , the coarsest - 200/160 micron (rough grinding). 
In grain selection window you see grain sizes according to standards:
MICRON=MESH(GRIT)=FEPA

CBN concentration: 100%
Do not waste your money on cheaper stones with lower/unknown concentration.

Flat solid block on aluminum.
  
Available on stock 

Preparation of sharpening stones
Unlike other sharpening stones, most of these combined bond stones do not need preparation, except stones with grits finer 1 microns (<Grit 15000). Ultrafine grains (1/0, 0.5/0) form agglomerates in a bond, so you may need to dress them with abrasive powders/pastes, or they will be self-polished after sharpening of 30-50 knives.

Selection of SiC powders for  dressing  of sharpening stones

StoneStarting gritFinishing grit
500/400 μ = 35/40= D501 F16 (1230 μ)F24 (745 μ)
400/315 μ = 40/45= D426F16 (1230 μ)F46 (370 μ)
315/250 μ = 50/60= D301 F24 (745 μ)F46 (370 μ)
250/200 μ = 60/70= D251F24 (745 μ)F60 (260 μ)
200/160 μ = 70/80= D213F36 (525 μ)F60 (260 μ)
160/125 μ = 100/120= D151 F46 (370 μ)F80 (180 μ)
125/100 μ = 120/140= D126  F60 (260 μ)F100 (129 μ)
100/80 μ = 140/170= D107F60 (260 μ)F120 (109 μ)
 80/63 μ = 170/200= D91  F80 (180 μ)F150 (82 μ)
63/50 μ = 230/270= D64 F100 (129 μ)F180 (69 μ)
50/40 μ = 270/325= D54  F120 (109 μ)F220 (58 μ)
40/28 μ = 550= M40F150 (82 μ)F240 (46 μ)
28/20 μ = 650= M25  F180 (69 μ)F320 (30 μ)
20/14 μ = 1100= M20F240 (46 μ)F400 (18 μ)
14/10 μ = 1500= M16  F320 (30 μ)F400 (18 μ)
10/7 μ = 1700= M10F400 (18 μ)F600 (10 μ)
7/5 μ = 3000= M6.3  F600 (10 μ)F800 (6,7 μ)
5/3 μ = 4000= M4F600 (10 μ)F800 (6,7 μ)
3/2 μ = 6000= M1.5 F800 (6,7 μ)F1200 (3 μ)
2/1 μ = 10000F800 (6,7 μ)F1200 (3 μ)
1/0 μ   F800 (6,7 μ)F1200 (3 μ)
0.5/0 μ   F800 (6,7 μ)F1200 (3 μ)


Use and cleaning of CBN sharpening stones
Use any comfortable oil (baby, olive..) to prevent glazing. If glazed - clean with alcohol and toothbrush.

Maintenance (in 1-2 years), flattening/revitalization:
- resin bond stones - with silicon (silica) carbide powders on glass plate,
- metal bond stones - with FeCl.
There are other methods (with SiC powders..), but method with FeCl, on glass plate is the cheapest and simplest.

You may buy 100 gr. of FeCl in dimensions selection window (click also any grain size to select it). I sell it if you buy a stone.

Grain size/operation reference chart
30000 grit = 0.5/0 μ - fine polishing
15000 grit = 1/0 μ - fine polishing
10000 grit = 2/1 μ - fine polishing
5000 grit = 3/2 μ - fine polishing
4000 grit = 5/3 μ - polishing
3000 grit = 7/5 μ - polishing
1700 grit = 10/7 μ - polishing
1500 grit = 14/10 μ - polishing
1100 grit = 20/14 μ - polishing
650 grit = 28/20 μ - polishing
550 grit = 40/28 μ - fine grinding
325 grit = 50/40 μ - fine grinding
285 grit = 63/50 μ - fine grinding
240 grit = 80/63 μ - fine grinding
225 grit = 100/80 μ - fine grinding
160 grit = 125/100 μ - grinding
100 grit = 160/125 μ - grinding
80 grit = 200/165 μ - sharpening / rough grinding


 
Free shipping
Contact us for combined shipping  quote or bulk discounts. 

Knife sharpening with CBN combined bond stones

Buy these stones on


Please read more about:

Shipping
Warranty, returns and refunds
Grain size conversion, selection and use of your tool

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GIFT BOXES, 8+1 DIAMOND OR CBN SHARPENING STONES (Gift)

GIFT BOXES, DIAMOND AND CBN SHARPENING STONES  
 
9 sharpening stones in wooden box.
Set CBN - cubic boron nitride sharpening stones. 
Set Diamond - diamond sharpening stones. 

Wooden box for storage and transportation of  9 sharpening stones.    
Length: 185 mm 
Width: 160 mm
Height: 40 mm  
Number of cells: 9 
The maximum thickness of the stone: 7 mm. 

Stones: abrasive, mounted on aluminum blank, dimensions: length, width, total thickness, working area thickness. Bonds: metal M2-01 for grinding, combined (metal-resin) BP44 for soft grinding, combined (metal-resin) BP50 for polishing.
 
1. Set CBN. Cubic boron nitride sharpening stones

CBN 150x25x7x3, Metal bond, 150%, grit 315/250 - forming of cutting edge
CBN 150x25x7x3, Metal bond, 100%, grit 200/160 - forming of cutting edge
CBN 150x25x7x3, Metal bond, 100%, grit 125/100 - rough sharpening
CBN 150x25x7x3, Metal bond, 100%, grit 63/50 - grinding
CBN 150x25x7x3, Combined bond, 100%, grit 28/20 - fine grinding
CBN 150x25x7x3, Combined bond, 100%, grit 14/10 - polishing
CBN 150x25x7x3, Combined bond, 100%, grit 7/5 - fine polishing
CBN 150x25x7x3, Combined bond, 100%, grit 3/2 - fine polishing
Italian Black Slate 152x25x7x4 mm, natural stone for superfinishing operations

2. Set Diamond. Diamond sharpening stones 

Diamond 150x25x7x3, Metal bond, 100%, grit 200/160 - forming cutting edge
Diamond 150x25x7x3, Metal bond, 100%, grit 125/100 - rough grinding
Diamond 150x25x7x3, Metal bond, 100%, grit 80/63 - grinding
Diamond 150x25x7x3, Metal bond, 100%, grit 50/40 - grinding
Diamond 150x25x7x3, Resin bond, 100%, grit 28/20 - fine grinding
Diamond 150x25x7x3, Combined bond, 100%, grit 14/10 - polishing
Diamond 150x25x7x3, Combined bond, 100%, grit 7/5 - fine polishing
Diamond 150x25x7x3, Combined bond, 100%, grit 3/2 - fine polishing
Italian Black Slate 152x25x7x4 - natural stone for superfinishing operations

Recommendations on selection of sharpening stones
How to maintain sharpening stones 


  


Preparation of sharpening stones
Stones with grits finer 3 microns either require preparation (dressing), or they will be self-polished after sharpening of 30-50 knives. Then they will be of gold color and work well.
This is common issue for all manufacturers: abrasive grains are covered with bond, so you need to "release" them. 
"Stone preparation" is not available because of war.  

Selection of SiC powders for  dressing  of sharpening stones

StoneStarting gritFinishing grit
500/400 μ = 35/40= D501 F16 (1230 μ)F24 (745 μ)
400/315 μ = 40/45= D426F16 (1230 μ)F46 (370 μ)
315/250 μ = 50/60= D301 F24 (745 μ)F46 (370 μ)
250/200 μ = 60/70= D251F24 (745 μ)F60 (260 μ)
200/160 μ = 70/80= D213F36 (525 μ)F60 (260 μ)
160/125 μ = 100/120= D151 F46 (370 μ)F80 (180 μ)
125/100 μ = 120/140= D126  F60 (260 μ)F100 (129 μ)
100/80 μ = 140/170= D107F60 (260 μ)F120 (109 μ)
 80/63 μ = 170/200= D91  F80 (180 μ)F150 (82 μ)
63/50 μ = 230/270= D64 F100 (129 μ)F180 (69 μ)
50/40 μ = 270/325= D54  F120 (109 μ)F220 (58 μ)
40/28 μ = 550= M40F150 (82 μ)F240 (46 μ)
28/20 μ = 650= M25  F180 (69 μ)F320 (30 μ)
20/14 μ = 1100= M20F240 (46 μ)F400 (18 μ)
14/10 μ = 1500= M16  F320 (30 μ)F400 (18 μ)
10/7 μ = 1700= M10F400 (18 μ)F600 (10 μ)
7/5 μ = 3000= M6.3  F600 (10 μ)F800 (6,7 μ)
5/3 μ = 4000= M4F600 (10 μ)F800 (6,7 μ)
3/2 μ = 6000= M1.5 F800 (6,7 μ)F1200 (3 μ)
2/1 μ = 10000F800 (6,7 μ)F1200 (3 μ)
1/0 μ = 15000 F800 (6,7 μ)F1200 (3 μ)
0.5/0 μ = 30000  F800 (6,7 μ)F1200 (3 μ)


Use and cleaning of CBN sharpening stones
Use any comfortable oil (baby, olive..) to prevent glazing. If glazed - clean with alcohol and toothbrush.

Maintenance (in 1-2 year), flattening/revitalization:
- resin bond stones - with silicon (silica) carbide powders on glass plate,
- metal bond stones - with FeCl.
There are other methods (with SiC powders..), but method with FeCl, on glass plate is the cheapest and simplest.
You may buy 100 gr. of FeCl in grain selection window. I sell it if you buy a stone.
 
Free shipping
Contact us for combined shipping  quote or bulk discounts. 

 
Buy these sets on 


Please read more about:

Shipping
Warranty, returns and refunds
Grain size conversion, selection and use of your tool

0.00€
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