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CBN NARROW 150x12 SHARPENING STONES, METAL AND COMBINED BONDS, FOR CURVED BLADES (150-12-7-4-3)

CBN (CUBIC BORON NITRIDE, BORAZON) SHARPENING STONES, METAL AND COMBINED BONDS, CONCENTRATION 100%, NARROW 
150-12-7-4-3   

 
Length: 150 mm = 6 inch
Width:   12 mm = 0.5 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: Metal M2-01 (copper-tin), Combined (copper-resin, depending on grain size)

 Flat solid block on aluminum blank.
 
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  sharpening of curved blades 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.  

 
Dressing / preparation of cubic boron nitride stone metal bond
Selection of SiC powders for  dressing  of sharpening stones

Stone Starting grit Finishing grit
500/400 μ = 35/40= D501 F16 (1230 μ) F24 (745 μ)
400/315 μ = 40/45= D426 F16 (1230 μ) F46 (370 μ)
315/250 μ = 50/60= D301  F24 (745 μ) F46 (370 μ)
250/200 μ = 60/70= D251 F24 (745 μ) F60 (260 μ)
200/160 μ = 70/80= D213 F36 (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= D107 F60 (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= M40 F150 (82 μ) F240 (46 μ)
28/20 μ = 650= M25   F180 (69 μ) F320 (30 μ)
20/14 μ = 1100= M20 F240 (46 μ) F400 (18 μ)
14/10 μ = 1500= M16   F320 (30 μ) F400 (18 μ)
10/7 μ = 1700= M10 F400 (18 μ) F600 (10 μ)
7/5 μ = 3000= M6.3   F600 (10 μ) F800 (6,7 μ)
5/3 μ = 4000= M4 F600 (10 μ)F800 (6,7 μ)
3/2 μ = 6000= M1.5 F800 (6,7 μ) F1200 (3 μ)
2/1 μ = 10000 F800 (6,7 μ) F1200 (3 μ)
1/0 μ    F800 (6,7 μ) F1200 (3 μ)
0.5/0 μ    F800 (6,7 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.

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. 


Please read more about:

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

0.00€
SET of 4,5 or 6 CBN SHARPENING STONES 150-12-3mm/ 6″ x 0.5″ (5CBNST150)
SET OF 4,5 or 6 CUBIC BORON NITRIDE  SHARPENING STONES, METAL AND COMBINED BONDS FOR CURVED BLADES, POLTAVA
150-12-3


Length:
150 mm = 6 inch
Width: 12 mm = 0.5 inch
CBN thickness: 3 mm = 0.12 inch
Blank thickness: 4 mm = 0.16 inch
Total thickness: 7 mm = 0.28 inch

Application: For  sharpening of curved (S-shaped) blades 

Buy all necessary stones and save: 10%!

These  next generation stones were developed on the basis of our experience in sharpening business:
- solid support plate (thicker aluminum blank: 4 mm vs. competitors' 3 mm);
- appropriate bonds (selected, depending on grain size)
- combination of long life, delicate sharpening, and excellent performance of combined(metal-resin) bonds.

Concentration 100%.
Flat solid block on aluminum blank, grains are distributed evenly across the stone.

Material: CBN - cubic boron nitride. It has the best cost/productivity ratio for processing of steels, comparing to diamond and cheaper stones, they are similar in qualities to Japanese wet stones, but have ten times longer working life. CBN is a generic name, there are also other names of this material, depending on manufacturer: borazon, elbor.

Sharpening stones in sets (grain size format: Micron(UA) = ANSI(US) = FEPA(EU)

Set of 4 stones:
1. 100/80μ = 140/170 = D107, metal bond M2-01 - rough sharpening
2. 50/40μ = 270/325 = D54, combined (metal-resin) bond BP50 - fine sharpening
3. 20/14μ = 1100 = M20, combined (metal-resin) bond BP50 - polishing
4. 7/5μ = 3000 = M6.3, combined (metal-resin) bond BP50 - polishing

Set of 5 stones:
1. 100/80μ = 140/170 = D107, metal bond M2-01 - rough sharpening
2. 50/40μ = 270/325 = D54, metal bond - sharpening
3. 28/20μ = 650 = M25, combined (metal-resin) bond BP50 - polishing
4. 14/10μ = 1500 = M16, combined (metal-resin) bond BP50 - polishing
5. 7/5μ = 3000 = M6.3, combined (metal-resin) bond BP50 - polishing

Set of 6 stones:
1. 160/125μ = 100/120 = D151, metal bond M2-01 - rough sharpening
2.  80/63μ = 170/200 = D91, metal bond - sharpening
3. 40/28μ = 550 = M40, combined (metal-resin) bond BP50 - polishing
4. 20/14μ = 1100 = M20, combined (metal-resin) bond BP50 - polishing
5. 10/7μ = 1700 = M10, combined (metal-resin) bond BP50 - polishing
6.  5/3μ = 4000 = M4, combined (metal-resin) bond BP50 - polishing


Recommendations on selection of sharpening stones.
How to maintain sharpening stones 

 
Download full catalog  

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

0.00€
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