Milwaukee 31/64 in. Thunderbolt Black Oxide Jobber Drill Bit

The Milwaukee Thunderbolt 31/64 in. black oxide jobber length drill bit is designed for extreme durability and long service life. Built with a thicker core than a standard drill bit, the Thunderbolt web provides superior strength and helps protect against side-load breakage during demanding drilling applications. Featuring a specially engineered parabolic flute form that clears chips fast, this drill bit also includes a 3-flat Secure-Grip shank to hold the bit firmly in the chuck and prevent slipping. The 135-degree split point tip delivers immediate starts on contact without walking, making it highly effective on curved surfaces and recommended for use in metal, wood, and PVC.