Countersink Drill Bits 5 pc Set

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IRWIN High Speed Steel Countersinks feature a precision-ground 82-degree tip that makes them ideal for countersinking into most machinable metals. They're made from industrial grade high speed steel for increased durability, and they include a black oxide finish for added corrosion resistance. The five flute design reduces vibration for smoother drilling and extended life. Plus, the 1/4 round shank fits all handheld and stationary drills.

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