MILWAUKEE RED HELIX COBALT DRILL BIT - 1/2"The Milwaukee Red Helix 1/2" cobalt drill bit delivers up to 15X longer life than standard black oxide bits. Built with cobalt alloy for extreme durability, the Variable Helix flute design (35-degree to 15-degree angle) provides rapid chip removal while limiting heat buildup. Engineered for drilling through stainless steel, cast iron, thick metal, wood, and PVC.
- Cobalt alloy construction for up to 15X life vs black oxide
- 135-degree split point for precision starts without walking
- Variable Helix flute geometry for rapid material extraction
- Quad Edge tip with four cutting edges reduces heat buildup
- Enhanced tapered web strengthens the bit core
- 3/8" reduced 3-Flat Secure-Grip shank prevents slipping in chuck
- Jobber length for standard drilling applications
- For stainless steel, cast iron, thick metal, wood, and PVC