DeWALT 5/16-inch steel magnetic nut setter is designed for fast and secure driving of hex-head screws, nuts, and fasteners. Featuring a powerful magnet for improved fastener retention and a durable hardened steel construction, this nut setter provides reliable performance for metal roofing, sheet metal work, framing, and general fastening applications. Compatible with impact drivers and drill/drivers with a 1/4-inch hex shank.