Milwaukee 48-89-2218 21/64′ THUNDERBOLT® Titanium Drill Bit

Engineered for superior performance and longevity, this 21/64″ drill bit features a titanium nitride coating that minimizes heat build-up, extending its lifespan by up to three times compared to standard bits. The design incorporates a thicker web that enhances durability, while the unique 3-Flat Secure-Grip™ shank ensures a firm hold in the drill chuck, reducing the risk of slipping during operation. With a 135° split point tip, it initiates drilling on contact, effectively preventing walking and allowing for fast, accurate drilling, while the parabolic flute design efficiently clears chips, enhancing overall drilling speed. Ideal for both professional and DIY projects, this drill bit combines functionality with robust construction for a reliable, high-performance tool.