When you want to buy any type of abrasive you need to know some factors. It is very important to know the material to be ground. The hardness and the type of material to be ground can determine the grinding wheel. You also need to know what kind of finish is required and the area in which grinding to be taking place. You also need to know about the dressing method to be used and the severity of operation to be conducted. Once you familiarize with the above mentioned factors here are some tips that will help you to choose a correct grinding wheels.

• You should use a softer grade wheel if the material to be ground is hard.
  
  
• You should use a fine wheel for good finish.
  
  
• You should use a Coarse grit to remove more material.
  
  
• Remember that compact structured grinding wheels give fine finish though they remove material a bit slowly.
  
  
• For a thin work piece use a soft wheel. It will avoid heating.
  
  
• Harder wheel will work for Coarser grits but the wheels will be unworkable in finer grits.