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Milwaukee THUNDERBOLT Black Oxide Drill Bit Set 21 pc

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.


  • What’s Included: (2) 1/16 in. bit, (1) 11/64 in. bit, (1) 1/2 in. bit, (1) 13/64 in. bit, (2) 1/4 in. bit, (1) 15/64 in. bit, (2) 1/8 in. bit, (2) 3/16 in. bit, (1) 3/32 in. bit, (1) 3/8 in. bit, (1) 5/16 in. bit, (1) 5/32 in. bit, (2) 5/64 in. bit, (1) 7/32 in. bit, (1)
  • 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

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