3/16" COBALT RED HELIX™ Drill Bit
3/16" COBALT RED HELIX™ Drill Bit
48-89-2309
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Regular price
$6.96
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$6.96
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The Milwaukee 48-89-2309 is a 3/16" RED HELIX™ cobalt drill bit designed for high-performance drilling in hard metals, especially stainless steel and other tough materials.
Key Features
- Cobalt Alloy Construction – Built for extreme heat resistance and up to 10–15× longer life vs. black oxide bits
- RED HELIX™ Variable Flute Design – Starts aggressive (35°) and transitions to 15° for faster chip removal and reduced heat buildup
- QUAD EDGE™ Tip (135° split point) – Helps start on contact and prevents walking for accurate drilling
- Enhanced Tapered Web – Strengthens the core to reduce breakage under load
- 3-Flat Shank – Improves grip in the drill chuck and reduces slippage
What It’s Designed For
- Stainless steel and hardened metals (primary use)
- Structural steel and metal fabrication
- PVC and plastic
- Wood (secondary use)

3/16" COBALT RED HELIX™ Drill Bit
$6.96