12V9 Diamond grinding wheel used for sharpening and finishing of front surface of reamer teeth,hobbing cutters,circular saws,drawing dies and tools made of hard alloys. Gashing requires higher profile consistency (of the grinding wheel) in comparison to fluting, due to the high edge quality required of carbide tools. Gashing grinding wheels are widely used for grinding a slot or notch along the cutting face to allow for chip flow on tungsten carbide, high speed steel (HSS), stainless drill ,end