Milwaukee 9/32″ THUNDERBOLT Black Oxide Drill Bit (6 PK)

ENGINEERED FOR MAXIMUM RIGIDITY AND SUPERIOR CHIP EVACUATION

The Milwaukee Thunderbolt series represents a significant mechanical upgrade over standard jobber bits, specifically engineered to withstand the high-torque demands of professional-grade portable drills. By utilizing a thicker corethe Thunderbolt webthis bit provides the structural integrity needed to resist side-load breakage during deep-hole applications or when drilling through curved surfaces. The parabolic flute geometry is a critical design choice, facilitating rapid chip evacuation to mitigate heat buildup, which is the primary cause of premature edge dulling. For precision work, the 135-degree split point eliminates the need for a center punch by biting into the material immediately upon contact, ensuring your holes stay exactly on layout.

• / Thunderbolt Web: Thicker core design provides ultimate strength and protects against breakage under heavy side-loading.
• / 135 Split Point: Precision tip starts on contact to prevent walking, making it ideal for drilling on pipe or rounded stock.
• / Parabolic Flute: Specialized geometry clears debris and chips fast to keep the bit cool and extend cutting life.
• / 3-Flat Secure-Grip Shank: Machined flats prevent the bit from spinning in the chuck during high-load drilling.
• / Black Oxide Coating: Enhances lubricity and provides essential corrosion resistance for long-term jobsite durability.

TECHNICAL SPECIFICATIONS

WHAT’S IN THE BOX

(1) 9/32″ Thunderbolt Black Oxide Drill Bit (48-89-2834)