Tile and glass plate cutter. Mark line to be scored. Place roller cutter on line and firmly draw cutter to score along the marked line. Position the breaker over the score line and press down to break along the scored line. For a perfect cut ensure to score a deep prominent continuous line and not multiple scoring.
In event if break is not clean along the score line, you may use a nipple plier to break along the scored line.
Handy tile cutter for mosaic art and stain glass craft.