A standard tile cutter will cut ceramic and porcelain tiles but not natural stone tiles. To use the standard tile cutter adjust and lock the guide. Then, slide your tile into position in the tile cutter. Next, position your cutter on the edge of the tile. Push down on the cutter while sliding the cutter across the tile. When the cutter gets to the end of the tile, press down. The tile should then break into two smooth, clean pieces. Run a tile file over the edge of the tile to reduce the sharpness of the cut.