Hammer drill and chisel
Once you have made sure you have sufficient replacement tiles, you must drill a series of holes on the tile to be replaced.
Subsequently, using a hammer and chisel, you must break it, paying attention to when you get close to the edges so as not to damage the adjacent tiles.
Once removed the tile in this way we take the replacement and apply the glue to pave on its back with a notched trowel.
Once repositioned and glued, we restore the joints with the appropriate cement and help with a damp sponge to fix the burrs.