Irwin Tools 1877720  Countersink Drill Bit,  Black Oxide, 3-Piece
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<b>[Product Information]</b><br>
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<li>Precision-ground 82 tip for countersinking into most machinable metals, wood or plastic</li>
<li>Made from industrial grade high speed steel for increased durability</li>
<li>Includes a black oxide finish for added corrosion resistance</li>
<li>Five flute design reduces vibration for smoother drilling and extended life</li>
<li>1/4" round shank fits all handheld and stationary drills</li>
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