Missing 1/4 bit and 3/8 bit. From company website: "The MILWAUKEE SHOCKWAVE Impact Duty 15PC RED HELIX Titanium Drill Bit Set is engineered for extreme durability and long life. 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 bits also feature an internal thicker tapered web that greatly increases strength, reducing premature breakage. Ideal for various applications including but not limited to wood, plastics, and metals. MILWAUKEE RED HELIX Titanium Drill Bits provide up to 5X life vs. black oxide drill bits. Set is organized in a customizable accessory case designed for use in PACKOUT."