Standard Grit Sizes
Gold Label
100 Heavy
Standard Grit Sizes Grade
No.
Grain
Size
Grit
Size
Finish
Cut
Black 150 100 Very Coarse
Red 120 120 Extra Coarse
Orange 90 170 Coarse
Tan 60 54-80 230 Medium Coarse
Silver Label
75 Medium
Yellow 45 36-54 325 Medium Cut
Green 30 22-36 600 Light Cut
Light
Blue
15 12-22 1200 Medium Micro
Dark
Blue
9 8-12 2000 Light Micro
Blue Label
50 Light
Indigo 6 4-8 3000 Fine Micro
Violet 3 2-4 8000 Super Fine Micro
White 1 0-2 14500 Ultra Fine Micro
Grey 1/2 0-1 50000 Zero Micro
Ivory 1/4 0-1/2 60000 Sub Zero Micro
Pink 1/10 0-1/5 200,000 Ultimate

Diamond concentration or content refers to the density or number of individual grain particles concentrated in a given amount of vehicle:

  • 100 (Heavy) represents the maximum number of grain particles concentrated for maximum cutting efficiency.
  • 75 (Medium) has three-fourths the diamond content of 100.
  • 50 (Light) has one-half the diamond content of 100.

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