Abrasive wheel is a combination of three parts agent and pores
 abrasives wheel constitute the main material, has high hardness, brittleness and thermal stability appropriate, in the grinding process of the workpiece from the cutting action; binding agent is the role of abrasive consolidation up to a certain shape of the and intensity of abrasive; pores are present in the grinding gap, grinding debris and heat capacity plays the role.
  Therefore, the choice can be separated from grinding wheel structure formed by the three elements of the basic characteristics of wheel, including the abrasive particle size, binder, hardness, structure, shape and size.