The sharpening stone was produced by Silicon Carbide or Aluminium Oxide material with Vitrified Boned or Resin Boned. The Combination Sharpening Stone with one coarse surface for rough finishing and another fine surface for fine finishing; one-side sharpening only one grit size,coarse or fine,but can be used for rought or fine finishing by customer requirment. Its feature is portable carrying,quick finishing,suitable hardness and long life,it can be used for sharpening all of cutting tools.
