ToolPro's #2R Reduced Phillips Bit Tips are made from hardened S2 steel, known for its durability and resistance to wear under high torque. The 50-piece set comes in a compact, reusable storage box, making it easy to keep your bits organized on the job site or in the shop. The box is designed to interlock with others, allowing you to build a customized, space-efficient storage system for all your ToolPro accessories.