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The MILWAUKEE® THUNDERBOLT® Black Oxide Drill Bit Set offers convenient, heavy-duty performance on the jobsite. Milwaukee 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 protection against side-load breakage. The 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. Black oxide drill bits are 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.
- Optimized Shock Zone geometry absorbs peak torque and prevents breaking
- Precise Fit Custom Machined Tip prevents stripping and reduces wobble
- Custom Alloy76 Steel maximizes resistance to wear and shock
- Up to 30x Life
- Absorbs 3X more torque vs. impact bits
- 1/4"-20 Threaded Mount
- Includes 142-pieces
