Thread: J-Nat club

With a Tomo Nagura it is not so much about hardness, it is about the grit, grit size and its frangibility. A Nagura will make slurry by the nagura breaking down, smooth the base stone face and remove a bit of grit from the base stone.

The two grits or slurry combine to make a new slurry. Often completely different from the originals from each stone, unless your Tomo is cut from the same stone. That is part of the mystique of Jnats and slurry. Add to that, slurry thickness, how or if it breaks down and technique, can have a unique effect on an edge.

Some slurries will continue to break down, refine and polish, some stop cutting and need refreshing and or a new slurry. A lot depends on the razor, technique and condition of the bevel.

Most folks have favorite Tomo nagura that work on a range of base stones but can still be tailored to produce a given result. Experimenting with different Tomo is the only way to find out what a stone is capable of. We are talking about finishing an edge, so results are varied and very subjective.