Our RED HELIX™ Cobalt Drill Bits are engineered for extreme durability and longer life in hard metal applications. The MILWAUKEE® Cobalt drill bits are designed with a VARIABLE HELIX™ that includes an aggressive 35° Helix Angle which ends at 15°. The Quad Edge Tip™ delievers an aggressive tip geometry with four cutting edges for faster drilling, while the Enhanced Tapered Web™ strengthens the bits’ core to increase flute durability. Our cobalt twist drill bits are ideal for tough applications, providing up to 15X life vs. Black Oxide Drill Bits™.
- Quad Edge Tip™ – four cutting edges for faster drilling into hardened materials.
- Quad Edge Tip™ – creates smaller chips to help prevent from burning out.
- Enhanced Tapered Web™ – wider core towards the shank of the drill bit.
- Enhanced Tapered Web™ – helps prevent the bit from breaking towards the shank.
- Variable Helix™ – aggressive flute geometry for rapid material ejection.
- Cobalt Alloy Construction – Keeps the drill bit from overheating, increasing durability in hard metal. 15X Life compared to Black Oxide Drill Bits.
Specifications
- Coating: Cobalt
- Length: 89mm
- Usable Length: 59mm
- Width: 3/16″
- Materials: Stainless Steel, Cast Iron, HSS Steel, Steel, Wood, PVC & Plastics




