The grinding wheel is also called fixed abrasive. The grinding wheel is a fixed abrasive with a certain strength using a bonding agent to fix a common abrasive in a certain shape (mostly round, with a through hole in the center). It is generally made up of abrasives, binders, and pores, which are often referred to as the three elements of a fixed abrasive. According to the different classifications of bonding agent, ceramic grinding wheel (bonding agent), resin grinding wheel (bonding agent) and rubber grinding wheel (bonding agent) are common. The grinding wheel is the largest and most widely used. It can be ground, semi-finished and polished on the outer circle, inner circle, plane and various profiles of metal or non-metal workpieces. Fine grinding and grooving and cutting.