Nagura Extra Coarse/Coarse Japanese Folding Knives It is not necessary to

It is not necessary to completely flatten this all out

they are almost as thin

Handle Length: 142mm

When used for a long time

and it is important to keep them clean and dry when not in use

Nagura Extra Coarse/Coarse Japanese Folding Knives It is not necessary toProduct Description Detailed Specs Measurements This is a double sided synthetic "nagura" for cleaning up and reconditioning stone surfaces. Unlike natural nagura, the mud from synthetic nagura should always be washed away before you begin sharpening. Nagura like this can be use to clean up a stone surface that has become loaded up with metal or is no longer working the way it should. It can also be used to either impart more scratches to the stone