JNS JNS synthetic (Matukusuyama)

Waterstone

The maker states no particle size. Anything shown is our inference, drawn as such.

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

503020105321

coarserfiner

inkmeasured or standardmaker figureour estimate

shapeknown distributionpoint, spread unknown

#220No size published

JNS

60 µm

none-published.

spread not published · reference scale about #230

#400No size published

JNS

30 µm

none-published.

spread not published · reference scale about #400

#800No size published

JNS

14 µm

none-published.

spread not published · reference scale about #800

#1000No size published

JNS

11.5 µm

none-published.

spread not published · reference scale about #1000

#3000No size published

JNS

4 µm

none-published.

spread not published · reference scale about #3000

#6000No size published

JNS

2 µm

none-published.

spread not published · reference scale about #6000

#10000No size published

JNS

1 µm

none-published.

spread not published · reference scale about #8850