Gesshin Gesshin toishi (JKI)

Waterstone

No particle size in microns is published for this line. The values are our estimates from secondary sources, so the marks are faded and the spread is unknown.

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

50302010532

coarserfiner

inkmeasured or standardmaker figureour estimate

shapeknown distributionpoint, spread unknown

#220Our estimate

Gesshin

60 µm

C-estimated from JIS.

spread not published · reference scale about #230

#400Our estimate

Gesshin

30 µm

C-estimated from JIS (#400 = 28 to 32).

spread not published · reference scale about #400

#1000Our estimate

Gesshin

11.5 µm

C-estimated from JIS (#1000 = 10.5 to 12.5).

spread not published · reference scale about #1000

#2000Our estimate

Gesshin

6.7 µm

C-estimated from JIS (#2000 = 6.1 to 7.3).

spread not published · reference scale about #2000

#4000Our estimate

Gesshin

3 µm

C-estimated from JIS.

spread not published · reference scale about #4000

#6000Our estimate

Gesshin

2 µm

C-estimated from JIS (#6000 = 1.6 to 2.4).

spread not published · reference scale about #6000

#8000Our estimate

Gesshin

1.2 µm

C-estimated from JIS (#8000 = 0.9 to 1.5).

spread not published · reference scale about #8000