Milwaukee Cobalt Red Helix Drill Bit Set for Drill Drivers and SHOCKWAVE Titanium Drill Bit Set (38-Piece)Milwaukee 38 Piece Cobalt & Titanium Drill Bit Set Tackle tough metal and wood projects with Milwaukee's 38 Piece Cobalt and Titanium Drill Bit Set. Designed for longevity and precision, this set features RED HELIX and SHOCKWAVE technologies, providing up to 15x and 50x lifespan improvements respectively, over standard bits. Easily store and transport with its customizable PACKOUT case. Key Features: Durability: Cobalt bits offer up to 15x longer life