① Check the selected position: Check if there are any hollows in the tiles, and select areas without hollows for drilling. ② Before drilling, apply sealing glue to the ceramic tiles, mainly to locate and prevent cracking of the tiles. ③ Use a cement nail to chisel a small spot on the tile surface that needs to be drilled to prevent the drill bit from slipping on the tile surface. ④ During the ceramic tile drilling stage, set the electric hammer to the flat drilling mode. When starting to drill holes on the ceramic tile surface, gently press the switch and slow down until the ceramic tile is penetrated. ⑤ In the cement wall stage, drill holes by adjusting the electric hammer to the hammer drilling mode. Next, drill the cement wall and press the switch to the bottom to accelerate the penetration. Following the above steps can ensure that the tiles are not broken.
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