Shapton 30000 grit (0.49 micron) GlassStone mortice chisel and yet create quite a

and yet create quite a smooth hole with minimal blow out on the exit and entry surfaces

The pockets will hold tools with 1" (25 mm) diameter handles or smaller

triangular

It is designed to be small enough to fit in an apron pocket

Shapton 30000 grit (0.49 micron) GlassStone mortice chisel and yet create quite aThis 30000 grit (0. 49 micron) GlassStone (50403) is a extremely fine grit. There is diminishing benefit in sharpening to this high a grit, so many may find that this stone isn't necessary for most sharpening tasks, particularly for chisels that will be used for chopping or mortising. But for those that are looking for the absolute sharpest edge possible, this stone may be the answer. The Shapton GlassStone HR series of ceramic sharpening stones are