If you choose to drill, make sure you do not use the drill's hammer or drill hammer position. These positions are too hard for your (delicate) tiles. Before you start you should check that there are no pipes behind the wall where you want to place the accessories.
Then draw the drill holes of the wall plate (spirit level) on the wall, so you know where the holes should be. Painter's tape stuck where you want to drill will make your drill slip less quickly, so your tiles remain better protected. Then start drilling slowly and gradually increase the speed. When the holes are drilled, carefully tap the plugs in the holes with your hammer. Then screw on the mounting plate, hang on your Tiger accessories and tighten it with the Allen key.
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