1. Firstly, check if there is any hollowing in the ceramic tiles. Remember to select the parts without hollowing during drilling, otherwise the tiles will crack. 2. Then apply some sealing glue to the location where you need to drill holes, which serves both to locate and prevent the tiles from cracking. 3. Afterwards, use a cement nail to chisel a hole in the desired hole to prevent the drill bit from slipping during drilling. 4. During the drilling process, it is important to pay attention to the mode of the electric hammer, which should be adjusted to the flat drilling mode. At first, when drilling, gently press the switch and slowly drill the hole.
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