Milwaukee Drill Bits are designed for extreme durability and long-lasting performance. The MILWAUKEE® 4 Piece SHOCKWAVE™ RED HELIX™ Titanium Drill Bit Set features the innovative QUAD EDGE™ tip, which provides a precision start and four cutting edges to create smaller chips for faster removal and reduced heat buildup. These titanium drill bits include a Variable Helix™ design with an aggressive 35° helical angle tapering to 15°, enabling Rapid Chip Removal™ to keep the bits sharper for longer periods. The internal ENHANCED TAPERED WEB significantly increases strength, helping to prevent premature breakage. for a variety of materials such as wood, plastics, and metals, these Milwaukee Red Helix Titanium Drill Bits up to five times the life of traditional black oxide drill bits. Model Number: 48-89-4644