• Thunderbolt® drill bits are designed with a thicker web, providing greater strength and longer life Efficient chip removal Precision starts, no walking Black oxide coating provides lubricity and resists corrosion of the bit 3-flat shank holds bit secure in drill chuck

Milwaukee® 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 deg split point tip delivers a precision start and prevents walking for fast, accurate holes. Effective for drilling on curved surfaces, Milwaukee® Thunderbolt® black oxide bits require less effort to drill through metal, wood and PVC, and are highly recommended for use with portable drills. Includes 2 bits.