This set includes four flat blade bits to fit Ruger® Single Action screws for base pin latch, grip frame, and ejector housing, plus an extra-long hex bit for Bisley™ backstrap screws. Rugged bit driver includes a powerful magnet for fast bit changes and to hold the screw against the bit. The handle is made from a tough, nearly unbreakable plastic. Driver is 6-3/16" long overall with a 1-¼" diameter grip. Bits fit the Ruger® Blackhawk®, Vaquero®, Bisley™, and 2005 and later New Vaquero®. All bits store in the hollow handle of the bit driver. All components made in the USA by Brownells.