Milwaukee 48-89-2836 5/16′ Thunderbolt® Black Oxide Drill Bit (6 PK)

Engineered for both performance and longevity, the 5/16″ THUNDERBOLT® Black Oxide Drill Bits are an essential addition to any toolkit. The black oxide coating enhances lubricity and offers corrosion resistance, ensuring that these bits maintain their integrity even under demanding conditions. With a 135° split point tip, they start drilling on contact to minimize walking, while the parabolic flute design effectively clears chips for fast and accurate drilling.