Dremel Saw Max DSM600 DSM520C DSM540 Multipurpose cut off wheel blade Dremel AccessoriesDSM520 MASONRY CUT OFF WHEEL This 3 In. abrasive wheel cuts a variety of masonry materials including stone, slate, cement board, bricks, concrete, cement backer board and more. Abrasive material for high performance masonry cutting applications 30 grit silicon carbide For on materials such as stone, slate and cement board DSM540 TILE DIAMOND WHEEL Diamond grit for hard material cutting applications For on materials such as floor tile, wall tile,