Tools4Boards HONE DUO 200 Grit Coarse Side is the perfect maintenance and deburring stone for sharp, smooth edges. Typically used as a second stone in progression from X-Coarse to X-Fine grit. 400 Grit Medium Side is the perfect all round maintenance and polishing stone for sharp, smooth edges. Typically used as the third stone in progression from X-Coarse to X-Fine grit.

Longer 95 x 20mm (3.75 x .8") Hone KGS Swiss Diamond® 100 Grit x-coarse one side / 1500 x-fine opposite side. Polishing and de-burring ability of a stone combined with the cutting ability of a file.