The Matco Tools 29-pc Hyper-Step Drill Bit Set features a patented hyper-step tip design that cuts 45 percent faster and excels at sheet metal and hardened metals like broken fasteners, the company says. The set includes a lifetime warranty on all bits down to 1/4" that spread the job of cutting across multiple levels. The multi-stepped tip acts like a step drill, allowing for laser-like holes through sheet metal and helping to prevent walking on curved surfaces. Three flatted shanks help reduce slippage common with keyless chucks. This set eliminates the need to drill starter pilot holes before making larger hole sizes. The set contains 1/16" through 1/2" by 64ths.