Milwaukee 3/8 in. Cobalt Thunderbolt Twist Drill Bit
Engineered for extreme durability, these Milwaukee Cobalt drill bits provide up to 15x longer life than black oxide bits in hard metal applications. The QuadEdge Tip and Variable Helix design work together to decrease heat buildup and ensure rapid material extraction for faster, more efficient drilling.
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Engineered for extreme durability, these Milwaukee Cobalt drill bits provide up to 15x longer life than black oxide bits in hard metal applications. The QuadEdge Tip and Variable Helix design work together to decrease heat buildup and ensure rapid material extraction for faster, more efficient drilling.
- Cobalt alloy construction provides up to 15x longer life compared to black oxide drill bits
- QuadEdge Tip technology decreases heat buildup to allow for faster drilling speeds
- Variable Helix design with an aggressive 35° angle ensures rapid material extraction
- 135° split point tip delivers a precision start and prevents walking
- Enhanced Tapered Web strengthens the bit's core to increase flute durability
- 3-Flat Secure-Grip shank helps keep the bit fixed within the chuck
- Versatile application for hard metals, stainless steel, aluminum, PVC, and wood