Milwaukee® Thunderbolt® Titanium Coated Drill Bits are designed for extreme durability and long life. The Thunderbolt® web is thicker than a standard drill bit, providing ultimate strength and protection against side-load breakage. A titanium coating reduces heat build-up and keeps the bit sharper for longer performance. The specially designed parabolic flute form clears chips and debris fast to keep the bit cool. A 135° split point delivers a precision start and prevents walking for fast, accurate holes. Efficiently drill on curved surfaces, Milwaukee® Thunderbolt® Titanium Coated bits require less effort to drill through wood, metal, and PVC, and are highly recommended for use with portable drills. Includes two drill bits.