How to use sharpening stone

Recommended selections of sharpening stones

Diamond stones, resin bond, grain sizes in microns

Recommended set # 1:

  Diamond stone 150x25x5x2, grain size 200/160 - forming the cutting edge
  Diamond stone 150x25x5x2, grain size 100/80 - rough sharpening
  Diamond stone 150x25x5x2, grain size 40/28 - fine sharpening
  Diamond stone 150x25x5x2, grain size 20/14 - fine lapping
  Diamond stone 150x25x5x2, grain size 7/5 - the finest lapping
  Diamond stone 150x25x5x2, grain size 3/2 - polishing.

Recommended set # 2:

  Diamond stone 150x25x5x2, grain size 200/160 - forming the cutting edge
  Diamond stone 150x25x5x2, grain size 100/80 - rough sharpening
  Diamond stone 150x25x5x2, grain size 40/28 - fine sharpening
  Diamond stone 150x25x5x2, grain size 20/14 - fine lapping
  Diamond stone 150x25x5x2, grain size 7/5 - the finest lapping
  Diamond stone 150x25x5x2, grain size 3/2 - polishing.
  Diamond stone 150x25x5x2, grain size 1/0 - fine polishing.
  Diamond stone 150x25x5x2, grain size 0.25 / 0 - the finest polishing.

Recommended set # 3:

  Diamond stone 150x25x5x2, grain size 200/160 - forming the cutting edge
  Diamond stone 150x25x5x2, grain size 125/100 - rough sharpening
  Diamond stone 150x25x5x2, grain size 63/50 - semi-finishing
  Diamond stone 150x25x5x2, grain size 28/20 - fine sharpening
  Diamond stone 150x25x5x2, grain size 14/10 - fine lapping
  Diamond stone 150x25x5x2, grain size 7/5 - the finest lapping
  Diamond stone 150x25x5x2, grain size 3/2 - polishing.

 Recommended set # 4:

  Diamond stone 150x25x5x2, grain size 200/160 - forming the cutting edge
  Diamond stone 150x25x5x2, grain size 125/100 - rough sharpening
  Diamond stone 150x25x5x2, grain size 63/50 - semi-finishing
  Diamond stone 150x25x5x2, grain size 28/20 - fine sharpening
  Diamond stone 150x25x5x2, grain size 14/10 - fine lapping
  Diamond stone 150x25x5x2, grain size 5/3 - polishing
  Diamond stone 150x25x5x2, grain size 2/1 - fine polishing.
  Diamond stone 150x25x5x2, grain size 0.5 / 0 - the finest polishing.

Recommended set # 5:

  Diamond stone 150x25x5x2, grain size 100/80 - rough sharpening
  Diamond stone 150x25x5x2, grain size 40/28 - fine sharpening
  Diamond stone 150x25x5x2, grain size 20/14 - fine lapping
  Diamond stone 150x25x5x2, grain size 7/5 - the finest lapping

 Recommended set # 6:

  Diamond stone 150x25x5x2, grain size 125/100 - rough sharpening
  Diamond stone 150x25x5x2, grain size 63/50 - semi-finishing
  Diamond stone 150x25x5x2, grain size 28/20 - fine sharpening
  Diamond stone 150x25x5x2, grain size 14/10 - fine lapping
  Diamond stone 150x25x5x2, grain size 7/5 - the finest lapping

 

Recommended set of 6 diamond stones, metal bond, grain size in microns::

    Diamond stone 150x25x3, metal bond, 100%, grain size 160/125 - rough sharpening
   Diamond stone 150x25x3, metal bond, 100%, grain size 80/63 - semi-finishing
   Diamond stone 150x25x3, metal bond, 100% ,grain size 40/28 - fine sharpening
   Diamond stone 150x25x3, metal bond, 100%, grain size 20/14 - fine lapping
   Diamond stone 150x25x3, metal bond, 100%, grain size 10/7 - the finest lapping
   Diamond stone 150x25x3, metal bond, 100%, grain size 5/3 - polishing.


Recomended sets of  CBN stones with resin (phenol-formaldehyde) and metal (copper-tin) bonds,
grain size in microns:

        Recommended set # 1:

   CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
  CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
  CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
  CBN stone 150x25x5x2 resin bond, grain size 20/14 - fine lapping
  CBN stone 150x25x5x2 resin bond, grain size 10/7 - the finest finishing
  CBN stone 150x25x5x2 resin bond, grain size 5/3   - polishing
  CBN stone 150x25x5x2 resin bond, grain size 2/1  - fine polishing.

Recommended set # 2:

   CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
  CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
  CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
  CBN stone 150x25x5x2 resin bond, grain size 20/14   - fine lapping
  CBN stone 150x25x5x2 resin bond, grain size 10/7 - the finest finishing
  CBN stone 150x25x5x2 resin bond, grain size 5/3   - polishing
  CBN stone 150x25x5x2 resin bond, grain size 2/1   - fine polishing.
 CBN stone 150x25x5x2, resin bond, grain size 0.5 / 0 - the finest polishing.

Recommended set # 3:

   CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
  CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
  CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
  CBN stone 150x25x5x2 resin bond, grain size  20/14   - fine lapping
  CBN stone 150x25x5x2 resin bond, grain size 7/5   - the finest finishing
  CBN stone 150x25x5x2 resin bond, grain size 3/2   - polishing

Recommended set # 4:

   CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
  CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
  CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
  CBN stone 150x25x5x2 resin bond, grain size 20/14   - fine lapping
  CBN stone 150x25x5x2 resin bond 7/5 grain size - the finest finishing
  CBN stone 150x25x5x2 resin bond 3/2 grain size - polishing
CBN stone 150x25x5x2 resin bond, grain size 1/0  - fine polishing.

Recommended set # 5:

  CBN stone 150x25x3, metal bond, grain size 200/160 - forming the cutting edge
  CBN stone 150x25x3, metal bond, grain size 125/100 - rough sharpening
  CBN stone 150х25х3, metal bond, , grain size 63/50 - semi-finish sharpening
  CBN stone 150x25x3, metal bond, grain size 28/20 - fine finishing
  CBN stone 150x25x5x2 resin bond, grain size 14/10 - fine lapping
  CBN stone 150x25x5x2, resin bond, grain size 7/5 - the finest finishing
  CBN stone 150x25x5x2, resin bond, grain size 3/2 - polishing.

Recommended set # 6:

   CBN stone 150x25x3, metal bond, grain size 125/100 - rough sharpening
  CBN stone 150х25х3, metal bond, grain size 63/50 - semi-finish sharpening
  CBN stone 150x25x3, metal bond, grain size 28/20 - fine finishing
  CBN stone 150x25x5x2, resin bond, grain size 14/10 - fine lapping
  CBN stone 150x25x5x2, resin bond 7/5 grain size - the finest finishing

Recommended set # 7:

  CBN stone 150x25x3, metal bond, grain size 100/80 - rough sharpening
  CBN stone 150x25x3, metal bond, grain size 40/28 - fine sharpening
  CBN stone 150x25x5x2, resin bond, grain size 20/14 - fine lapping
  CBN stone 150x25x5x2, resin bond, grain size 10/7 - the finest finishing


Preparation before first use


Stones 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
For preparation you need cast iron plate (obviously) and set of  6 abrasive powders (60/40 - 5/3 micron). If you had no previous experience with preparation, better leave this job to professionals. We prepare stones for 10 USD / stone

Use and cleaning

Use any comfortable oil (baby, olive..) to prevent glazing. And your sharpening stone would not glaze.
But if it glazed - clean with alcohol and toothbrush.

Maintenance is only needed every year or two.

In 1-2 years you may need to flatten stone, 20 mins with Ferric chloride (FeCl): - 20 mins setting in 25% mixture (25 gr FeCl per 75 gr of water),
- few minutes polish movements (carefully draw "8") on glass plate.  

That's all, you do not need special chemicals, tools, or equipment, see the video. 

Presentation of CBN sharpening stones, combined bond and how to prepare them for the first use.

Sharpening with Poltava diamond and CBN stones

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