CBN NARROW 150x12 SHARPENING STONES, METAL AND COMBINED BONDS, FOR CURVED BLADES

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.  

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.  

 

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

• Model: 150-12-7-4-3
• Manufacturer: