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Sharpening Comparison

Crystolon
(Silicon
Carbide)

India (Aluminium Oxide) Arkansas (Washita, Soft, Hard) White, Black, Translucent Diamond Stones

Waterstones

JIS (Japan)

Coated Abrasives (Waterproof Sandpaper)

CAMI (USA)

Coated Abrasives (Waterproof Sandpaper)

FEPA (Europe)

Diamond Compound

Micron Size

               
            P100 141
Coarse           P120 127
          120   116
  Coarse India         P150 97
          150   93
Medium         180 P180 78
            P220 65
      Extra Coarse Diamond (220) Norton 220 220   60
            P240 58
  Medium India       240   53.5
            P280 52.5
              50
            P320 46
Fine             45
      Coarse Diamond (325)   280   43
            P360 40.5
        360 320   36
  Fine India Washita       P400 35
          360   29
            P600 25.8
          400   23
  Extra Fine India Soft Arkansas Fine Diamond (600) 600   P800 22
              20
        800 600 P1200 16
        Norton 100 700   14
          800 P1500 12.6
    Hard White Arkansas Extra Fine Diamond (1200) 1200     11
            P2000 10.3
        1500 1000   9.2
              9
          1500 P2500 8.4
        Norton 2000     7.5
    Hard Black Arkansas Hard Translucent Arkansas   Norton 4000 2000   6
              5
        Norton 8000     3
              1.2
              1
        15000     0.5

Crystolon
(Silicon
Carbide)

India (Aluminium Oxide) Arkansas (Washita, Soft, Hard) White, Black, Translucent Diamond Stones

Waterstones

JIS

(Japan)

Coated Abrasives (Waterproof Sandpaper)

CAMI

(USA)

Coated Abrasives (Waterproof Sandpaper)

FEPA

(Europe)

Diamond Compound

Micron

Size

               

Relative Sharpening Comparisons for Norton Abrasive Products