Milwaukee 11/16″ S&D Black Oxide Drill Bit

PRECISION PENETRATION AND SUPERIOR CHIP EJECTION IN HIGH-TENSILE METALS

The Milwaukee Thunderbolt® Silver & Deming drill bit is engineered for the rigors of high-torque drilling in stainless steel, cast iron, and high-tensile materials. Utilizing a reinforced Thunderbolt® core, this bit features a thicker web that provides significantly greater strength and resists breakage under heavy side-loading. The parabolic flute geometry is optimized for rapid chip evacuation, preventing heat buildup and extending the life of the cutting edge. With a 135-degree split point, the bit engages the workpiece immediately on contact, eliminating the need for center punching and preventing the bit from walking across the surface. The 1/2-inch reduced shank features three milled flats, ensuring a secure, non-slip connection in standard drill chucks, which is critical when driving larger diameters through dense alloys.

• / 135° Split Point: Precision start on contact prevents bit walking and ensures accurate hole placement without center punching.
• / Thunderbolt® Web: Thicker core design increases bit strength and durability, preventing snapping in deep-hole applications.
• / Parabolic Flute Geometry: Engineered for high-speed chip ejection to reduce friction and maintain lower operating temperatures.
• / 3-Flat Secure-Grip™ Shank: Milled flats provide a positive lock in the chuck, preventing bit slippage during high-torque drilling.
• / Black Oxide Coating: Enhances lubricity and provides a layer of corrosion resistance for long-term jobsite reliability.