Daredevil, 3/16 x 4 x 6, multi-purpose drill bit, upgraded multi-grind heads deliver up to 85% faster drilling in metal than standard bits, hex shanks & impact rated allows use in impact drivers & hammer drill/drivers for added versatility, sharp ground cutting edges designed for advanced performance, steep flutes with ribs deliver fast material removal in multiple materials, multi-application design offers drilling in masonry, brick, block, tile, metal, wood & plastic, long-life construction provides up to 9x life in multi-material applications than standard bits, no skate tip design allows for cleaner holes, 4 flute length, 6 length, 6 overall length, 1/4 shank diameter, 4 useable length.