Falcon (Boride) Falcon diamond compound

Compound

The maker publishes these figures. A single value per grade, no distribution given, so each is drawn as a point.

Each grade below shows its size in microns, its spread (the published distribution, where a maker or standard gives one; most makers publish none), and where that size lands on the reference scale, a shared yardstick for reading grit numbers across makers.

Particle sizemicrons, log

5030201053210.50.3

coarserfiner

inkmeasured or standardmaker figureour estimate

shapeknown distributionpoint, spread unknown

1/2 Grey (0.5)Maker-published

Falcon (Boride)

0.5 µm

Range 0.1 to 1 µm. Diamond compound; maker grade 0.5 micron, distribution 0 to 1 micron (60000 mesh).

spread 0.1 to 1 µm · reference scale about #13050

1 BlueMaker-published

Falcon (Boride)

1 µm

Range 0.1 to 2 µm. Maker grade 1 micron, distribution 0 to 2 (14000 mesh).

spread 0.1 to 2 µm · reference scale about #8850

3 GreenMaker-published

Falcon (Boride)

3 µm

Range 1 to 5 µm. Maker grade 3 micron, distribution 1 to 5 (8000 mesh).

spread 1 to 5 µm · reference scale about #4000

6 YellowMaker-published

Falcon (Boride)

6 µm

Range 4 to 8 µm. Maker grade 6 micron, distribution 4 to 8 (3000 mesh).

spread 4 to 8 µm · reference scale about #2200

9 RedMaker-published

Falcon (Boride)

9 µm

Range 6 to 12 µm. Maker grade 9 micron, distribution 6 to 12 (1800 mesh).

spread 6 to 12 µm · reference scale about #1300

15 BrownMaker-published

Falcon (Boride)

15 µm

Range 8 to 22 µm. Maker grade 15 micron, distribution 8 to 22 (1200 mesh).

spread 8 to 22 µm · reference scale about #760

30 MahoganyMaker-published

Falcon (Boride)

30 µm

Range 20 to 40 µm. Maker grade 30 micron, distribution 20 to 40 (600 mesh).

spread 20 to 40 µm · reference scale about #400

45 PurpleMaker-published

Falcon (Boride)

45 µm

Range 30 to 60 µm. Maker grade 45 micron, distribution 30 to 60 (325 mesh).

spread 30 to 60 µm · reference scale about #290