DeWALT MAXFIT 30-piece screwdriver bit set is designed for high-performance fastening with impact drivers and drill/drivers. Featuring precision-machined tips for maximum fastener fit and reduced cam-out, the bits include a torsion zone for enhanced durability under high torque. The set contains a variety of Phillips, Slotted, Square, and Torx bits, along with magnetic nut setters and bit holders, all organized in a durable ToughCase® storage case for easy transport and access