The Milwaukee 9mm Cobalt RED HELIX Twist Drill Bit is engineered for exceptional durability and high performance in hard metals. Featuring a Variable Helix design with an aggressive 35° angle tapering to 15°, it enables rapid chip removal, reduces heat buildup, and maintains sharpness over extended use. Its QUAD EDGE 135° split point tip ensures precise starts without walking, delivering fast and accurate drilling. The four cutting edges create smaller chips for quicker removal, further minimizing heat and increasing efficiency. An enhanced internal taper web strengthens the bit to resist breakage, while the cobalt construction delivers up to 10X longer life compared to black oxide drill bits—making it ideal for demanding drilling applications.
Key Features:
Cobalt construction offers up to 10X longer life vs. black oxide drill bits
Ideal for drilling in hard metals, stainless steel, black pipe, and wood
QUAD EDGE tip stays sharper longer
135° split point ensures precise starts with no walking
Thicker tapered web increases strength and durability
Variable Helix (35°–15°) improves chip removal and reduces heat
Rapid chip removal keeps the bit cooler and sharper longer
3-Flat Secure-Grip shank prevents slipping in the chuck
