99 pieces in one case: everything from small precision bits up to masonry bits, covering wood, metal, and masonry in a single set. Titanium coating extends bit life and cuts cleaner than uncoated HSS. The case keeps every size organized and grabs-and-goes to the job site instead of loose bits rattling around in a drawer. Built for a homeowner tackling everything from picture hooks to real drilling jobs, not just a starter set.