Check the listing for details. WOODRIVER Diamond Stone 6” Model JM-MDS6. Condition: New. Listed at 41.48 USD. WOODRIVER Diamond Stone 6” Model JM-MDS6, 166103, 6" x 2-3/8" double-sided diamond stone, The 400-grit side will make short work of small nicks and create the basic edge, The 1200-grit will refine an edge in preparation for final honing or creation of a secondary bevel, Ideal for smaller shaping jobs, beveling and general sharpening, This WoodRiver Diamond Stone offers double-sided plates 400 grit / 1200 grit. The 400-grit side will make short work of small nicks and create the basic edge. The 1200-grit will refine an edge in preparation for final honing or creation of a secondary bevel. At about 6.25 oz., this 6" x 2-3/8" stone is a handy size for toolbox, backpack or benchtop. This is also an excellent small stone for knives such as pocketknives and kitchen knives.