Milwaukee 3/16" THUNDERBOLT® Black Oxide Drill Bit (12 PK)

ENGINEERED FOR EXTREME DURABILITY AND SIDE-LOAD RESISTANCE

When you're drilling through thick gauge steel or repetitive pilot holes in the field, bit failure isn't just an inconvenience—it's a productivity killer. The Milwaukee Thunderbolt Black Oxide series is designed to solve the most common failure point in jobber bits: core snapping. By utilizing a thicker Thunderbolt web, these bits provide significantly higher structural integrity, allowing them to withstand the side-load pressures that typically shatter standard bits. The parabolic flute geometry is a game-changer for heat management, ejecting chips rapidly to prevent the friction-welding that dulls cutting edges prematurely. Whether you're working on curved surfaces or flat stock, the 135-degree split point ensures the bit bites immediately without walking, providing the precision required for professional-grade mechanical and structural installs.

• / Thunderbolt® Web Design: A thicker core provides ultimate strength and protects against breakage during aggressive or high-torque drilling.
• / 135° Split Point Tip: Starts on contact to prevent walking, ensuring fast and accurate holes even on curved or uneven surfaces.
• / Parabolic Flute Geometry: Clears chips and debris fast to keep the bit cool and extend the life of the cutting edge.
• / Black Oxide Coating: Provides essential lubricity and corrosion resistance for long-term durability in harsh jobsite conditions.
• / 3-Flat Secure-Grip Shank: Specifically engineered to prevent the bit from slipping in the drill chuck during high-torque applications.

WHAT'S IN THE BOX

(12) 3/16" Thunderbolt® Black Oxide Drill Bits (48-89-2828)