ARTU Drill Bit, Multi-Purpose, 3/8 in Diameter, Parabolic Flute, 2-7/8 in Flute Length, Quick-Connect Shank, 2-3/8 in Shank Length, Cobalt/Tungsten Carbide Cutting Edge, Chrome Vanadium Steel, 5-1/4 in Overall Length, Applicable Materials: Brick, Cast Metal, Ceramic Tiles, Concrete, Fiberglass, Glass, Granite, Hardened Steel, Hardwood, Marble, Masonry, Plexiglas, PVC, Softwood, Suitable for: Cordless Drills, Corded Drills, Drill Presses