Confirm whether the power source connected to the site matches the hammer drill. Whether the hammer drill is connected with a leakage protector.
The hammer drill bit and the holder should be matched, and the drill bit should be properly installed.
When using a hammer drill to drill walls, ceilings, and floors, check whether there are buried cables or pipes.
When working at high places, pay full attention to the safety of objects and pedestrians below, and set up warning signs when necessary.
Check whether the switch on the hammer drill is turned off. If the power switch is turned on, the power tool will turn unexpectedly when the plug is inserted into the power socket, which may cause personal injury.
If the work site is far away from the power source, when the cable needs to be extended, use a qualified extension cable with sufficient capacity. If the extension cable passes through the pedestrian aisle, it should be elevated or take measures to prevent the cable from being crushed and damaged.