Grinding wheel stone (Grinding Wheels) are two types of rough stone and stone wheel wheel profile. Rough stone wheel on the right hand. Lahiri wheel detail is left uncut stone wheel which consists of porous stone tablet binder support shaft casing. In the selection of the Night Jia stone wheel to select the type of stone grinding wheel to match the type of knife to be confidential. Because there are many kinds of materials cutting like a knife turning round steel high. Carbide inserts. Knives or nail polish sharpening stone wheel selection must take into account the size of the cut stone grinding wheel. Wheel size specified for use with food, for example, Diameter wheel center grew out of stone cutting thickness of uncut stone wheel diameter hole in the stone grinding wheel and so on.