The 14-piece Milwaukee® Thunderbolt® titanium coated drill bit set offers convenience and heavy duty performance on the jobsite. Milwaukee® Thunderbolt® titanium coated drill bits are designed for extreme durability and upto 3X longer life. The Thunderbolt® web features a thicker core than a standard drill bit to provide ultimate strength and protect against side-load breakage. The titanium coating reduces heat build-up and keeps the bit sharp to extend performance. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool. The 135 deg split point tip delivers a precision start and prevents walking for fast, accurate holes. Effective for drilling 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. Milwaukee® Thunderbolt® Drill Bit Set, 14 Piece, Specifications: 3-Flat Shank, 135 deg Split Point, HSS, Titanium Coated, Gold