"New patented Hyper-Step tip design cuts 45% faster and excels at sheet metal and hardened metals like broken fasteners","Lifetime warranty bits that spread the job of cutting across multiple levels, staying sharp up to 4X longer compared to conventional and other specialty tip designs","The multi-stepped tip acts like a step drill, allowing for laser like holes through sheet metal and prevents walking on curved surfaces","Eliminates the need to drill starter pilot holes before making larger hole sizes 25/64" REDUCED SHANK HYPER-STEP DRILL BIT DBHS25R | Matco Tools