DeWALT® FLEXTORQ® Impact Screwdriver Bit, System of Measurement: Imperial, #3 Point, Phillips® Point, 2-1/4 in Overall Length, Hex Shank, 1/4 in Shank, Impact Rated, For Use With: Impact Drivers and Drills, Additional Information: 0.3 in H x 1.9 in W Dimensions