1. Before use, be sure to check whether the protective cover is stable and whether the installation of the angle grinder is stable;
2. Wear protective glasses and appropriate work clothes; flap wheel ，the cutting direction should not point towards others or yourself;
3. The inclination angle between the grinding disc and the workpiece should be 30-40 degrees; when using the angle grinder, remember not to apply too much force, and the force should be even, so as to avoid unsafe hazards caused by the fracture of the grinding disc.
4. Do not use an angle grinder with unqualified quality such as expired or damp; please use an angle grinder produced by a regular manufacturer. The maximum speed that the angle grinder can withstand should be consistent with the speed of the angle grinder;
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