Milwaukee 1-1/4" Thunderbolt Silver & Deming Drill Bit 48-89-2749

MAXIMUM TORQUE TRANSFER AND PRECISION IN HIGH-TENSILE METALS

The Milwaukee 1-1/4" Thunderbolt Silver & Deming drill bit is engineered for high-performance drilling in challenging materials like stainless steel and cast iron. By utilizing a specialized parabolic flute geometry, this bit maximizes chip ejection to prevent heat buildup, ensuring the industrial-grade steel maintains its cutting edge through repeated heavy-duty cycles. The mechanical design focuses on eliminating common jobsite frustrations—specifically bit walking and chuck slippage—allowing for faster production rates and more accurate hole placement in thick plate or structural members.

• / 135° Split Point Tip starts on contact to prevent walking and delivers immediate penetration without a pilot hole.
• / 3-Flat Secure-Grip Shank provides a mechanical lock in the drill chuck to prevent spinning under high torque.
• / Parabolic Flute Geometry clears chips rapidly to reduce friction and extend the service life of the cutting edge.
• / Black Oxide Coating offers superior lubricity and corrosion resistance for long-term durability in wet or harsh environments.

WHAT'S IN THE BOX

(1) 1-1/4" Thunderbolt Silver & Deming Drill Bit (48-89-2749)