The DEWALT 45-Piece Screwdriving Set includes the most commonly used screwdriver accessories. The industrial-strength case is strong and durable. The set includes Phillips, square, slotted, and double-ended bits. Most commonly used screwdriver accessories. Phillips bits feature optimized fastener fitment to provided increased torque and performance. Titanium torsion bits stand up to higher torque and provide longer bit life. Includes a magnetic drive guide for added convenience. Tough Case provides convenient storage.