DMT Dia-Sharp Sharpener 2 x 6 x 1/4 inch. Extra-Coarse diamond (60 micron / 220 mesh) when significant removal of material is needed for damaged edges. The 6 inch sharpening stone includes non-skid rubber feet. Grit clearly marked on side of stone. Expect cutting edge performance with the DMT Dia-Sharp 6 inch continuous diamond sharpening bench stone. For knives blades and fine tools.