Description
The Shapton Glass Stone Seven 25.0 micron, model 70102, is the coarsest sharpening stone in the Shapton Glass Stone Seven collection. With a grain size comparable to a 500 grit Japanese water stone, this stone is primarily designed for sharpening blunt knives. For the best results, it is recommended to use this stone in conjunction with other Glass Stone Seven sharpening stones with lower micron ratings for finer honing and polishing.
Compact stone with stone properties specially developed for kitchen knives.
The premium range from Japanese company Shapton is the glass stone series. The sharpening particles are highly pure and homogeneous. This is noticeable when changing to finer grits: The traces from the previous grit are quickly ground out. A special bond allows quick sharpening on a flat surface. The sharpening stone has a base of tempered glass and is thus 100 % warp-free. Conventional sharpening stones may warp microscopically by absorbing water, but Shapton stones solve this problem with their extremely flat base of tempered glass.
Another advantage of the glass base is that the grit rating on the underside is always visible even after much use. Before use, spray the stones with water. It is not recommended to keep them in water permanently.