Tungsten carbide abrasive hole saw. Self-sharpening particles, so when a particle chips, a new surface is created in its place. Comes with arbor and pilot. For use with any variable speed hand drill. Cuts ceramic tile, concrete block, cement board, brick, fiberglass, plexiglas, PVC, wood with nails, cultured marble and drywall.. Tungsten Carbide Grit Hole Saw For Abrasive Construction Materials. For Use On Concrete Block, Cultured Marble, Brick, Cement Board, Wood, Drywall, Pvc, Fiberglass, Ceramic Tile, Plastic, Plexiglass. 2-1/4" Cutting Depth. 3/8" Shank. Cuts Clean Holes Smoothly In Materials Without Snagging. Designed To Work With Any Variable Speed Hand Drill. For The Builder, Tile Setter, Homeowner, Do-It-Yourselfer, Construction Worker And Other Professionals