Milwaukee 5/32" THUNDERBOLT® Black Oxide Drill Bit

ELIMINATE BIT WALKING AND CORE BREAKAGE WITH THUNDERBOLT® TECHNOLOGY

Engineered for the high-torque demands of professional-grade portable drills, the Milwaukee 5/32" Thunderbolt® Black Oxide Drill Bit is a masterclass in mechanical durability. Unlike standard bits that fail under lateral pressure, the Thunderbolt® web features a significantly thicker core that reinforces the bit against side-load breakage. This structural integrity is paired with a parabolic flute geometry that ejects chips with high efficiency, preventing the heat buildup that typically dulls cutting edges. For professionals working on curved surfaces or stainless steel, the 135° split point is essential, providing a precision start that bites into the material immediately without the frustration of bit walking.

• / Thunderbolt® Web: Thicker core design maximizes cross-sectional strength to resist breakage during aggressive drilling or side-loading.
• / 135° Split Point: Precision-ground tip starts on contact, eliminating the need for a center punch and preventing bit travel on slick surfaces.
• / Parabolic Flute Geometry: Rapidly clears debris and chips to keep the cutting edge cool, significantly extending the service life of the bit.
• / Black Oxide Coating: Provides superior lubricity to reduce friction and protects against corrosion in harsh jobsite environments.
• / 3-Flat Secure-Grip™ Shank: Prevents the bit from slipping in the chuck under high-torque applications for consistent power transfer.

WHAT'S IN THE BOX

(1) 5/32" Thunderbolt® Black Oxide Drill Bit (48-89-2716)