MILWAUKEE RED HELIX COBALT DRILL BIT - 7/64"The Milwaukee Red Helix 7/64" 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
- Round shank design fits standard drill chucks
- Jobber length for standard drilling applications
- Best for precision pilot holes, sheet metal, rivet holes, and detail metalwork
- Drills stainless steel, cast iron, thick metal, wood, and PVC
Tip: Use cutting oil and moderate RPM (350-1500 depending on material) when drilling stainless or hardened steel - cobalt bits stay sharp longer when run cool.