Irwin 1877714 Drill Bit, 1/4 in Dia, 1-17/32 in OAL, Countersink, 5-Flute, 1/4 in Dia Shank, Round Shank

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Precision ground 82 deg tip for countersinking most machinable metals, wood or plastic. HSS with black oxide coating for corrosion-resistance. Five-flute design reduces chatter for smoother drilling and extended life. Precision grind process removes the burr from cutting edge for cleaner cuts Made of high-grade heat-treated forged steel, plated and black oxide finished to prevent rust Black oxide finish resists corrosion Five flute design reduces vibration for smoother drilling and extended life 1/4 in round shank fits all handheld and stationary drills Show more