Blue Label

GRIT SIZE | SURFACE FINISHES

 

		Light Diamond Concentration
END USE		Spectrum Grade No. Grain Size Grit Size Finish Cut Diamond Concen- tration Color U.S Bur. Std. Microns Mesh Equiv. Surface Rough- ness
A Super Fine Grit Sizes For Finest Select Work		Pink 1/10 0-1/5 200,000 Sub-Zero Micro 50 Ivory 1/4 0-1/2 60,000 Sub-Zero Micro 50 Grey 1/2 0-1 50,000 Zero Micro 50 White 1 0-2 14,500 Ultra Fine Micro 50 Violet 3 2-4 8,000 Super Fine Micro 50
B Fine Grit Sizes General Purpose High Polish Mirror Finishes		Indigo 6 4-8 3,000 Fine Micro 50 Dark Blue 9 8-12 2,000 Light Micro 50 Light Blue 15 12-22 1,200 Medium Micro 50
C Medium Grit Sizes For Fast Stock Removal		Green 30 22-36 600 Sub-Zero Micro 50 Yellow 45 36-54 325 Sub-Zero Micro 50 Tan 60 54-80 230 Zero Micro 50
D Coarse Grit Sizes For Heavy Stock Removal		Orange 90 Mesh 170 Coarse Cut 50 Red 120 Mesh 120 Extra Coarse Cut 50 Black 60 Mesh 100 Very Coarse Cut 50