Milwaukee 48-89-2739 Thunderbolt Drill Bit, Black Oxide, 17/32" Dia x 6" L

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The Milwaukee Thunderbolt Black Oxide drill bits are designed for extreme durability and long life. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool.
SKU: 43044526
MFG: 48-89-2739
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  • 135-degree split point tip starts on contact to prevent walking
  • Parabolic flute clears chips fast
  • 3-Flat Secure-Grip shank holds the bit firmly in the drill chuck for reduced slipping
  • Black oxide coating provides lubricity and resists corrosion
  • Reduced shank diameter for use in 1/2" chucks


  • Drill Bit Diameter: 17/32"
  • Dril Bit Length: 6"
  • Material: Black Oxide
  • Shank Diameter: 1/2"
  • Shank Type: Reduced 3-Flat Shank
  • Chuck Size: 1/2"
  • Bit Type: Twist
  • Design: Silver & Deming
  • Application: Aluminum, duct/sheet metal, PVC, steel and wood
  • Number of Pieces: 1
  • Packaging Type: Carded


MFR: 48-89-2739
SKU: 43044526
UPC: 045242167128
Brand: Milwaukee