How can you improve the Tormek, one of the best sharpening systems available? Install one of these Japanese water stone wheels. Japanese water stones are universally accepted as the premier stones for obtaining unsurpassed hand sharpened edges. Because they are softer than western style stones, they continually expose a fresh, sharp surface to the tool edge. Now you can achieve the same results with a motorized stone. Available in 800 grit for repairing nicked edges or reshaping a bevel, and 4000 grit for a mirror polished edge.