Milwaukee 48-89-2820 1/16” THUNDERBOLT Black Oxide Drill Bit (12pk) Milwaukee 48-89-2820 1/16” THUNDERBOLT Black Oxide Drill Bit (12pk) is designed for extreme durability and long life. The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate strength and protect against side-load breakage. A specially designed parabolic flute form clears chips fast, while the 3-Flat Secure-Grip shank holds the bit firmly in the drill chuck.

The 135° split point tip delivers a precision start and prevents walking for fast, accurate holes. Effective for drilling on curved surfaces, the Milwaukee 48-89-2820 1/16” THUNDERBOLT Black Oxide Drill Bit (12pk) requires less effort to drill through metal, wood and PVC, and are highly recommended for use with portable drills.