Milwaukee 27/64" THUNDERBOLT® Black Oxide Drill Bit (6 PK)

REINFORCED THUNDERBOLT WEB FOR SUPERIOR TORSIONAL STRENGTH

Engineered for the high-torque demands of professional-grade portable drills, the Milwaukee Thunderbolt Black Oxide drill bit series redefines durability in hole-making. The core of this bit features the proprietary Thunderbolt web, a thicker cross-section design that significantly increases torsional strength compared to standard jobber bits. This structural reinforcement is critical for preventing side-load breakage when drilling through thick metal or navigating uneven surfaces. By combining a 135-degree split point with a parabolic flute geometry, this bit ensures immediate engagement without walking and rapid chip evacuation to mitigate heat buildup, preserving the cutting edge for extended service life.

• / Thunderbolt® Web: Thicker core design maximizes strength and protects against snapping under heavy side-loading and high-torque applications.
• / 135° Split Point: Precision tip geometry starts on contact to prevent bit walking, ensuring accurate hole placement without the need for a center punch.
• / Parabolic Flute Geometry: Specially designed to clear chips and debris quickly, keeping the bit cool and maintaining cutting efficiency in deep-hole drilling.
• / 3-Flat Secure-Grip™ Shank: Machined flats provide a rock-solid connection in the drill chuck, eliminating bit slippage during high-resistance drilling.
• / Black Oxide Coating: Enhances lubricity and provides a protective barrier against corrosion, extending the life of the bit in harsh jobsite conditions.

WHAT'S IN THE BOX

(6) 27/64" Thunderbolt® Black Oxide Drill Bits (48-89-2843)