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Irwin Lock-n-Load 1/4" x 12" Quick Change Bit Extension

Brand: Irwin Mfg#: 4935705
Product#: 1734935705
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WARNING: Cancer and Reproductive Harm -  www.P65Warnings.ca.gov.

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The IRWIN® SPEEDBOR® Max Speed wood drilling bit is the FASTEST SPEEDBOR EVER. The Speed Tip features a full screw-point that allows bit to self-feed, as well as three (3) cutting spurs for faster, cleaner holes, less breakout, and extended drilling life. The tapered tri-flute design allows for faster chip ejection and less binding. Its grooved hex shank prevents slipping and fits all standard 1/4" quickchange chucks, including impact drills.


  • Patented jaw design holds bits securely on 6-flatted shanks, as well as ball detent bits
  • 1/4 in Quick Change range now holds insert bits; magnetic for holding
  • Lock-n-Load system for one handed quick release


  • Brand: Irwin
  • Product Line: Lock-N-Load
  • Drive Size: .25 in
  • Drive Type: Hexagonal
  • Material: Carbon Steel
  • Overall Length: 12 in
  • Prop65: WARNING: Cancer and Reproductive Harm -