Hole Saw Tc Grit 2-1/8in W/Arb 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