1. Wear proper personal protective equipment: Before using a hand held power hammer, be sure to wear safety glasses, ear plugs or muffs, non-slip gloves, and appropriate shoes. These protective gear effectively protects your eyes from flying debris, reduces noise damage to hearing, provides hand grip and foot support.

2. Check the status of the electric hammer: Before you start to work, check whether the hand held power hammer has damaged or worn parts, such as whether the drill is sharp, and whether the cable is cracked or worn. Make sure the hand held power hammer is in good working condition.

3. Secure the work surface: Before starting to drill or chisel, ensure that the work surface is stable and no loose parts. If you need to work on ladders or scaffolding, make sure they are stable.

4. Power off operation: When making any adjustment or replacing the drill, always unplug the hand held power hammer from the power socket to prevent injury caused by accidental start.

5. Maintain proper posture: When using a hand held power hammer, keep your body balanced and stand with your feet apart to stabilize your center of gravity. Grip the electric hammer tightly and use shoulder and arm strength instead of wrist strength to reduce the risk of fatigue and injury.