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Irwin® 7/16" X 16" Extra-Long, Wood Boring, Flat Bit

This Irwin® Flat Bit fit's all standard Quick Change chucks and features a 10% larger shank for added durability.
Product Overview

Made from Carbon Steel this extra-long bit has a grooved hex shank that prevents slipping in drill chuck or bit extensions also has double spurs scribe the outside of the hole that reduces "break out". Patented blue-groove point & cutting edge prevents scraping of the wood.


  • Irwin® brand
  • Model number: 88714
  • 16" Speedbor® Extra-Long Flat Bit
  • Diameter: 7/16 in.
  • Length: 16 in.
  • Shank size: 1/4 in.
  • Use for wood drilling (and some plastic)
  • Material: carbon steel
  • It can be used with 3/8 in. or 1/2 in. drill
  • Drill style: spade

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