Use the electric drill on the tile, tile how fragile?
There's no need to change the impact bit. Tap through the tile section and continue with the screw depth. Pay attention to one hole, remove the glass bit, and clear the hollow part of the blocked bit.
With a shallow mark, you can remove the hole plate, and then. Prepare a water bottle in advance, drill a hole in the bottle cap, and fill the bottle with water. Then, when drilling, at the same time to water into the drill bit and ceramic tile contact parts; especially all ceramic tile, must have water oh.
The location of the punch needs to be pre calibrated to ensure the level. (pay attention to the corresponding location in the wall, no water and electricity lines)Glass drilling on the tile, the first inclined direction hit a pit; otherwise smooth tile is too bad; or not all tiles, with nails directly make a little hole; it is accurate, can also use a hole (size) has the best set of plates.