1. The operator should wear protective glasses to protect the eyes. When working with the face up, wear a protective mask.
2. When working for a long time, it is necessary to plug earplugs to reduce the impact of noise.
3. The drill bit is in a hot state after long-term operation, and care should be taken to burn the skin when replacing it.
4. The side handle should be used during operation and operated with both hands to prevent the arm from being twisted by the reaction force when the rotor is blocked.
5. When working on a ladder or working at a height, measures for falling from a height should be taken, and the ladder should be supported by ground personnel.
