1. Use the corner grinding machine. Before starting, you must hold the handle tightly with both hands to prevent the starting torque and fall to ensure the safety of the personal machine.

2. The corner grinding machine must be installed with a protective cover, otherwise it must not be used.

3. When working on the corner grinding machine, the operator should not stand in the direction of dandruff to prevent the iron dumbfing from flying out of the eyes. It is best to wear a protective mirror when using it.

4. When grinding the thin plate component, the sand wheel should be gently contacting, not too hard, and closely staring at the grinding site to prevent grinding.

5. Use the angle grinding machine to be gently put, cut off the power or gas source in time, and place it properly. It is strictly forbidden to litter or even fall.