Chuck’s Bits offers hard-to-find premium quality drill bits at affordable prices. These single-size masonry bit sets are ideally suited for users who tend to wear out a specific size. The carbide tip allows the bits to be used in percussion hammer drills, while the round/straight shank provides maximum flexibility for fitting the bits in most corded and cordless rotary and hammer drills. The bits are constructed of high-quality carbon steel for superior strength, with copper brazing to provide increased heat resistance. The plastic storage case keeps the drill bits safe and organized, while the bold sizing on the case allows for ready identification.