Milwaukee Cobalt Red Helix Drill Bit Set for Drill Drivers (29-Piece). QUAD EDGE TipT delivers precision and stays sharper longer. Thicker tapered web design increases bit strength. VARIABLE HELIXT flute on driver bit allows for rapid chip removal. Milwaukee Red Helix 29PC Cobalt drill bit set is engineered for extreme durability and long life in hard metal applications. The Quad Edge Tip delivers a precision start and features four cutting edges to create smaller chips for faster material removal and less heat leading to improved performance. Designed with a Variable Helix flute that begins with an aggressive 35° helical angle and ends at 15° for rapid chip removal. The bit also features an internal thicker tapered web that greatly increases strength, reducing premature breakage. Ideal for various tough metal applications including but not limited to Stainless Steel, Cast Iron, and Thick Metal. Milwaukee Red Helix Cobalt drill bits provide up to 15X life vs. Black oxide drill bits. The set is organized in a customizable accessory case designed for use in Packout. Cobalt alloy for up to 15x life vs. QUADEDGE TIP designed to decrease heat build up and drill faster. ENHANCED TAPERED WEB strengthens the bits core. VARIABLE HELIX Design for rapid material extraction. 135° split point for precision start no walking. 3-Flat Secure-Grip helps keep the bit fixed within the the chuck. Designed for hard metals, PVC and wood. Includes: (2) 1/16 in. Cobalt Drill Bit, (2) 5/64 in. Cobalt Drill Bit, (1) 3/32 in. Cobalt Drill Bit, (2) 7/64 in. Cobalt Drill Bit, (2) 1/8 in. Cobalt Drill Bit, (2) 9/64 in. Cobalt Drill Bit, (2) 5/32 in. Cobalt Drill Bit, (1) 11/64 in. Cobalt Drill Bit, (2) 3/16 in. Cobalt Drill Bit, (1) 13/64 in. Cobalt Drill Bit, (1) 7/32 in. Cobalt Drill Bit, (1) 15/64 in. Cobalt Drill Bit, (2) 1/4 in. Cobalt Drill Bit, (1) 5/16 in. Cobalt Drill Bit, (1) 3/8 in. Drill Bit Type(s) Included.