Shapton 4000 grit (3.68 micron) GlassStone shinwa measuring tools These stainless steel knife edge

These stainless steel knife edge squares are made to the highest Class 00 accuracy according to German Standard DIN 875

The primary bevels are ground at 25 degrees

The cloth can be stored in a ziploc bag when not being used

The square cut teeth on this riffler cut faster and leave a smoother cut than products with the same grain density of triangular teeth

The steel shaft runs through the handle which also facilitates the transfer of force to the screwdriver tip

Shapton 4000 grit (3.68 micron) GlassStone shinwa measuring tools These stainless steel knife edgeThis 4000 grit (3. 68 micron) GlassStone (50103) is a medium grit, so cuts quickly but leaves a fairly fine finish. The Shapton GlassStone HR series of ceramic sharpening stones are the most advanced series of stones that Shapton makes they are designed to cut both modern tool steels and high carbon steel very quickly, but wear very slowly, so don't need to be flattened as often as most waterstones. The stones have a 5 mm thick layer of very