Diablo, 5 piece 1-7/8" nut setter set. Set consists of 1 each 1/4", 5/16", 3/8", 7/16" and 1/2" nut setters. Diablo's range of magnetic nut setters delivers maximum performance and extreme durability in driving hex nuts or self-tapping screws. A high-strength, permanent magnet provides a secure, anti-wobble grip when fastening screws and nuts into a variety of applications. Torque resistant design absorbs torque for less stress at the tip. This range is impact strong, delivering increased shank stability and durability in cordless and corded impact and drill drivers.