Search:

Photo of the box, please.

You are the one saying its possilbly made of the same material as a #118.
Do you have a box or instructions with the hone you are trying to de-grease?
How & why have you indentify the hone in the...

You mentioned this in your post;

",,, From the looks and feel of it, this is made from the same sort of stuff as the Carborundum razor hones. Finer than the 118s hones, about as smooth as the old...