The 20-piece Milwaukee® titanium coated drill bit set offers convenience and heavy duty performance on the jobsite. Milwaukee® titanium coated drill bits are designed for extreme durability and upto 3X longer life. The tapered web resists side-load breakage, while the 3-Flat Secure-Grip™ shank holds the bit firmly in the drill chuck. The titanium coating reduces heat build-up and keeps the bit sharp to extend performance. The 135 deg split point tip delivers a precision start and prevents walking for fast, accurate holes. Milwaukee® Thunderbolt® Drill Bit Set, 20 Piece, Specifications: 3-Flat Shank, 135 deg Split Point, HSS, Titanium Coated, Gold