DeWalt 15-piece Screwdriver Bit Set. The strength and durability of heat-treated screw and nut driver bits make them a great choice for the demanding professional, and that dependability is exactly what you get in the DeWalt screwdriving bit sets. The advanced hardening process used in the creation of these tools allows them to provide higher torque and improved driving power, so you get jobs done faster and more efficiently. Features & Benefits • Bit retention system keeps bits secure • Superior quality • Compatible with all drills and power screwdrivers • Heat treated for longer life • Built-in hooks for hanging case • Magnetic drive guide reduces stripping and wobbling • Assorted sizes of Phillips, Slotted and Square bits for almost any task Specifications • Manufacturer Code: DT7918-QZ • Number of Pieces: 15