Milwaukee Thunderbolt 31/64 In. Black Oxide Drill Bit Rafter Square Vials also include patented blue-bands

Vials also include patented blue-bands to maximize bubble meniscus visibility and are accurate to within

2960 CFM on low

Hand-chiseled for maximum paint lift and smooth "no-drag" application

For interior use only

an industrial grade extension handle

Milwaukee Thunderbolt 31/64 In. Black Oxide Drill Bit Rafter Square Vials also include patented blue-bandsMilwaukee Thunderbolt Black Oxide jobber length drill bits are 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 and debris fast to keep the bit cool. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes.