The Impact Driver Set 6PC includes 4 impact-rated bits and 1 driver, designed for high-torque driving applications. The set features 5/16" bits, which are durable enough to handle tough materials and high-impact work. The 4 bits ensure versatility for different fastening tasks, while the 1 driver is used to securely hold and drive the bits into screws or fasteners. This set is ideal for use with impact drivers in various industries like construction, automotive, and DIY projects, providing reliability and efficiency when dealing with heavy-duty fastening.