GIFT BOXES, 8+1 DIAMOND OR CBN SHARPENING STONES

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, resin BP44 for soft grinding,  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, Resin bond, 100%, grit 28/20 - fine grinding
CBN 150x25x7x3, Resin bond, 100%, grit 14/10 - polishing
CBN 150x25x7x3, Resin bond, 100%, grit 7/5 - fine polishing
CBN 150x25x7x3, Resin 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, Resin bond, 100%, grit 14/10 - polishing
Diamond 150x25x7x3, Resin bond, 100%, grit 7/5 - fine polishing
Diamond 150x25x7x3, Resin 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

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)	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. 

 
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