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, hybrid BP44 for soft grinding, resin BP50 for polishing.
1. Set CBN. Cubic boron nitride sharpening stones
CBN 150x25x7x3, Metal bond, 150%, grit F50 (Extra Coarse) 315/250μ – forming of cutting edge
CBN 150x25x7x3, Metal bond, 100%, grit F80 (Extra Coarse) 200/160μ – forming of cutting edge
CBN 150x25x7x3, Metal bond, 100%, grit F160 (Coarse) 125/100μ – rough sharpening
CBN 150x25x7x3, Metal bond, 100%, grit F285 (Medium) 63/50μ – grinding
CBN 150x25x7x3, Hybrid bond, 100%, grit F650 (Fine) 28/20μ – fine grinding
CBN 150x25x7x3, Hybrid bond, 100%, grit F1500 (Very fine) 14/10μ – polishing
CBN 150x25x7x3, Hybrid bond, 100%, grit F3000 (Extra fine) 7/5 – fine polishing
CBN 150x25x7x3, Hybrids bond, 100%, grit F5000 (Ultra fine) 3/2μ – fine polishing
Italian Black Slate 152x25x7x4 mm, natural stone for superfinishing operations
2. Set Diamond. Diamond sharpening stones
Diamond 150x25x7x3, Metal bond, 100%, grit F80 (Extra Coarse) 200/160μ – forming cutting edge
Diamond 150x25x7x3, Metal bond, 100%, grit F160 (Coarse) 125/100μ – rough grinding
Diamond 150x25x7x3, Metal bond, 100%, grit F240 (Coarse) 80/63μ – grinding
Diamond 150x25x7x3, Metal bond, 100%, grit F325 (Medium) 50/40μ – grinding
Diamond 150x25x7x3, Hybrid bond, 100%, grit F650 (Fine) 28/20μ – fine grinding
Diamond 150x25x7x3, Hybrid bond, 100%, grit F1500 (Very fine) 14/10μ – polishing
Diamond 150x25x7x3, Hybrid bond, 100%, grit F3000 (Extra fine) 7/5 – fine polishing
Diamond 150x25x7x3, Hybrid bond, 100%, grit F5000 (Ultra fine) 3/2μ – fine polishing
Italian Black Slate 152x25x7x4 – natural stone for superfinishing operations
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: with silicon (silica) carbide powders on glass plate, making slow polishing movements, similar to drawing digit 8.
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