For rotary or percussion drilling in masonry, ceramic tile, concrete, brick, fiberglass, cast metals, wood, and glass. For use with Tapcon fasteners. Chrome vanadium steel shank. Tip is blend of tungsten carbide/cobalt. Withstands drill temperatures up to 2000 F (Degree Fahrenheit). Resharpenable. Conforms to ANSI (American National Standards Institute) standards. Diameter: 5/32 In. Length: 3-1/2 In. Flute Length: 1-7/8 In. Shank Diameter: 5/32 In. Material: Steel Shank/Tungsten Carbide& Cobalt Tip