Diamond honing stones, honing sticks, Poltava 
 
 
Material / abrasive: diamond
 
Available dimensions, Grain sizes, microns:
150-6-4-12-50, 1250/1000   
150-6-4-12-50, 28/20          
150-6-3-12-50, 250/200       
125-6-3-12-30, 250/200        
125-5-3-8-50, 250/200         
125-5-3-8-50,  125/100         
125-4-2-8-20,  200/160       
125-6-5-8 (3+2+3), 28/20    
100-5-3-8-40,  200/160        
100-6-3-12-50, 80/63            
100-8-40, 20/14               

Application: Accurate machining of holes and workpieces of cast iron, steel and other materials.
 

Grain size/operation reference chart

60000 grit = 0.25/0 μ - fine polishing
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

Metal bond  
 
Concentration - 100% 
Do not waste your money on cheaper stones with lower/unknown concentrations. 
 
Flat solid block  
 

Usage
You may use any comfortable oil (baby, olive..) to prevent glazing. If glazed - clean with alcohol and toothbrush.

 
My listings of Poltava sharpening/honing stones (Length x Width x Abrasive Thickness, mm):



    



Diamond sharpening stones: not recommended for steels with high carbon content, but perform well with hard steels,  like CPM S90V.
CBN sharpening stones: standard for steels.   
Combined bond: next generation bond, combines delicacy of resin bond on fine grains, and wear resistance of metal bonds on coarse grain sizes. 
Sets: preselected stones to make your choice easier: metal and combined bond sharpening stones on blanks. 
Pro 200% - professional stones with concentration 200% (standard stones are 100% concentration), which means higher productivity and longer tool's life. 
Economy: cost saving solution for most sharpening applications. 
"Pro" and "Economy" are the only nicknames I use for stones and I suppose it's clear why. No pathetic nicknames and brands. Just product as it should be, from trusted Poltava seller. 

Sharpening with Poltava diamond and cubic boron nitride stones

Sharpening with Poltava diamond and CBN stones

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Made in Ukraine 


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
 


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Catalog of diamond and CBN tools

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