Transform your drilling capabilities with this premium 5-piece step drill bit set. Each bit features a unique stepped cone design that allows you to drill multiple hole sizes with a single bit, making it an incredibly versatile addition to your toolbox. Crafted with high-grade cobalt steel, these bits deliver superior performance when working with metal surfaces including iron, aluminum, copper, and steel. They're also suitable for wood applications. The titanium-coated surface enhances durability and reduces friction during use, while the stepped design helps prevent walking and ensures precise, clean holes every time. The set includes five different-sized bits that provide a comprehensive range of hole sizes, eliminating the need for multiple conventional drill bits. The hex shank design ensures a secure grip in your drill chuck, reducing slippage during operation. These professional-grade step drill bits are ideal for both DIY enthusiasts and professional craftsmen who demand reliable performance and precision in their drilling tasks.