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

 

 

NATURAL DIAMOND

SYNTHETIC DIAMOND

 

 

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