Grinding tools are the main factor that determines the quality of grinding processing. Reasonable selection of grinding tools is the main condition that constitutes the best parameters of grinding processing. Angle grinders are the most used type of abrasives. They are used for the grinding and rust removal of various metal and non-metal materials, which are quick and economical. High-speed rotation during operation can be used for rough grinding, semi-finishing and fine grinding, as well as grooving and cutting of metal or non-metal workpieces. When the use time is too long and the angle grinder is worn out, how to maintain it?

1. Observe whether the bearings of the angle grinder are intact. If the sealing cover of the bearing is found to be incomplete or missing, all the lubricating grease inside must be replaced, otherwise the iron chips mixed in it will damage the gear.
2. When replacing the angle grinder, install the plastic ring outside the stator of the angle grinder. With it, the air is drawn forward by the wind blades on the rotor at high speed and ejected from the machine head to effectively cool the rotor. And the stator coil prevents the temperature from rising. Otherwise, the coil will inevitably overheat if it is used for a long time.