Get the right drill bit for any type of drilling job with this handy DeWalt set. Each bit features an aggressive spur for fast material penetration. Optimized cutting geometry extends bit life, while the open-tooth design allows for more resharpenings. The 7/16" ball groove shank allows you to quickly interchange the bits for more complex jobs. The innovative 2-cutter design reduces the risk of binding and stalling, and shank flats prevent the drill bit from slipping while drilling. The rugged plastic case ensures well-organized bits and protects them from external elements. The set is backed by a 3-year limited warranty and 1 year of free service. Satisfaction guaranteed 90 days.