Shapton 4000 grit (3.68 micron) GlassStone Narex 813519 Styri have told us that

Styri have told us that they are still operating in spite of the war so we are supporting them by continuing to build our inventory and selling their tools

A half-turn will rotate the magnets which pushes forward a pin connected to the cartridge

so don't need to be flattened as often as most waterstones

and can be used in conjunction with HNT Gordon tail vises

sturdy blades ideal for hinge mortising

Shapton 4000 grit (3.68 micron) GlassStone Narex 813519 Styri have told us thatThis 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