CBN sharpening/honing stones 150 mm/ 6'', combined bond, any grain size, Poltava

Description: CBN sharpening stones combined bond, on blank, Poltava 150 х 25 х 7 x 3 x 4 Length: 150 mm = 6 inch Width: 25 mm x = 1 inchTotal thickness: 7 mm = 0.28 inchCBN thickness: 3 mm = 0.12 inchBlank thickness: 4 mm = 0.16 inch These stones were developed basing on our experience in sharpening business: - solid support plate (thicker aluminum blank);- appropriate bonds (depending on grain size)- combination of long life, delicate sharpening, and excellent performance. Material: CBN - cubic boron nitride. It has the best cost/productivity ratio for processing of STEEL, comparing to diamond and cheaper materials. CBN is a generic name, there are also other names of this material, depending on manufacturer: borazon, elbor, cubonite, etc. CBN grit: any, please select from the list. Please refer grain size conversion chart below. There's "Leather on aluminum blank", polished Italian leather, to apply paste (https://www.ebay.com/itm/284796231990) on final operations, dimensions 160x25x7.Because this product is relatively cheap, comparing to shipping costs, I sell Leather on aluminum blank, if you buy a stone. Bond: combined bonds to ensure the best performance. Grain sizes: 0.5/0- 5/3 - resin bond BP50 for polishing;Grain sizes 5/3 - 63/50 - resin bond BP44 for grinding;Grain sizes 80/63 - 125/100 - wear resistant metal-resin bond BP08 for grindingGrain sizes 160/125 - 315/250 - roughing metal-resin bond BP05 for grinding Concentration 100%.Do not waste your money on cheaper stones with lower/unknown concentrations. Flat solid block on aluminum blank. PreparationStones with grits finer 3 microns either require preparation on cast iron plates, 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, unless stones are prepared before shipment (cost 10usd). Because of war, we temporary stopped Stone preparation service. Here are 2 ways to do that:1. SiC powders on glass plate, polish the stone with each grain size for 5 min. Refer SiC selection table below. Cheap and simple method. 2. CBN pastes on 3 iron plates. One iron plate for each grit size set (60/40 and 28/20, 14/10 and 7/5, 3/2 and 1/0), total working time 1 hour. This method is more expensive, but more effective. You may buy Set of SiC powders for stone preparation (F400, F800, F1200), 100 gr. of each, total weight 300 gr. Use and cleaningUse 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 silica powders or with FeCl. You may buy 100 gr. of FeCl in grain selection window. I sell it if you buy a stone. Please review presentation and how-to-prepare video: CBN sharpening stones, combined bond. Presentation and preparation for first use Video will open in a new window Using the eBay App? Paste link into a browser window: [isdntekvideo] Selection of SiC powders for dressing of sharpening stonesStoneStarting gritFinishing grit500/400 μ = 35/40= D501F16 (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= M1.5F800 (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) My listings with sharpening/honing stones: Metal bond diamond stones Resin bond diamond stones Metal bond CBN stones Resin bond CBN stones 30000 grit = 0.5/0 μ - fine polishing15000 grit = 1/0 μ - fine polishing10000 grit = 2/1 μ - fine polishing5000 grit = 3/2 μ - fine polishing4000 grit = 5/3 μ - polishing3000 grit = 7/5 μ - polishing1700 grit = 10/7 μ - polishing1500 grit = 14/10 μ - polishing1100 grit = 20/14 μ - polishing650 grit = 28/20 μ - polishing550 grit = 40/28 μ - fine grinding325 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 Recommended set of these stones for steel (microns from coarse to fine): 200/160125/10063/5040/2820/1410/75/32/1CBN paste 0.5/0 (https://www.ebay.com/itm/284796231990) on leather blank Made in Ukraine, by Poltava plant of diamond tools. List of my wheels on stock Shipping: Ukrainian post (ukrposhta.ua), registered mail with tracking number; delivery time to US, Europe - 2-4 weeks. Tracking will be available on your local post website when order arrives to your country; it is advisable to track on specialized sites like trackitonline, etc. All orders do arrive if address is correct, but delivery time of some parcels may be delayed up to 2 months because of logistics or customs issues. Please contact me first before opening case. International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. Grain conversion chart

Price: 10 USD

Location: Poltava

End Time: 2023-11-06T19:18:07.000Z

Shipping Cost: 0 USD