What stones are these??

[ricklee4570]

I need help identifying these stones. They are for an Edge Pro sharpening system, 1x6 in measurement.

Manufacturer?
Grit sizes?

Any info would be appreciated.

 

[Papilio]

The numbers printed on each stone gives how coarse / fine the stone is. For example 45,94µ is about 240 FEPA or ~360 JIS. µ means micron. So the stone on the left side is the coarsest stone, the one on the right side (2.45µ, ~ 6.000 JIS) the finest of this setup.
There are grit charts all over the internet. Grit micron FEPA JIS are keywords.
Can't say anything about the manufacturer.

 

[Mr.Wizard]

Those numbers exactly match the peculiar labeling of the Shapton Glass Stones, so either that is what they are or what someone wants you to believe they are.

 

[ricklee4570]

Those numbers exactly match the peculiar labeling of the Shapton Glass Stones, so either that is what they are or what someone wants you to believe they are.

I think they are Shapton. A friend uses Shapton and his look identical, even the sharpie writing on the back of the stone holder is the same. Thanks!