Milwaukee 7/32" THUNDERBOLT® Black Oxide Drill Bit (12 PK)

ENGINEERED FOR EXTREME DURABILITY AND SUPERIOR CHIP EVACUATION

The Milwaukee Thunderbolt Black Oxide drill bits are engineered to solve the most common failure point in metal drilling: side-load breakage. By utilizing the Thunderbolt web—a significantly thicker core than standard jobber bits—these bits provide the structural integrity required for high-torque applications and portable drilling where tool orientation isn't always perfectly perpendicular. The parabolic flute geometry is a critical mechanical advantage, aggressively ejecting chips and debris to minimize heat buildup and extend the cutting edge's service life. Designed for professional-grade performance in steel, wood, and plastic, these bits ensure every hole starts with precision and finishes with efficiency.

• / Thunderbolt® Web: Features a thicker core that provides ultimate strength and protects against breakage during side-loading.
• / 135° Split Point: Precision tip starts on contact to prevent walking, ensuring fast and accurate hole placement without a center punch.
• / Parabolic Flute Form: Optimized geometry clears chips and debris rapidly to keep the bit cool and maintain cutting speed.
• / 3-Flat Secure-Grip™ Shank: Prevents the bit from slipping in the drill chuck, maximizing power transfer and preventing shank damage.
• / Black Oxide Coating: Provides essential lubricity and superior corrosion resistance for long-term jobsite reliability.

WHAT'S IN THE BOX

(12) 7/32" Thunderbolt® Black Oxide Drill Bits (48-89-2830)