Purchased this along with a new cordless driver to use during a kitchen remodel. Very happy I got it, as it, in combination with the smaller driver, allowed me the use of a power tool in small and constricted areas where the entire driver would not fit to reach with the traditional short bits. The #2 bit works on most screws, even on some smaller ones, but I wouldn't have minded also owning the smaller #1 (or is it #3 ??) bit and maybe even a flat head one, if they make it.