This 21-Piece Titanium Drill Bit Set, with common sizes from 1/16 to 3/8-Inch, is perfect for drilling metal, wood, and plastic. The Titanium Nitride Coating ensures faster drilling and longer bit life, while the 135-Degree split point prevents slipping. With an impact-rated 1/4-Inch hex shank, it's compatible with drills and impact drivers. Organized storage is easy with stand-up bit holders, and a MODbox compatible and stackable design allows for seamless tool integration. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.