Countersink Drill Bit, 1/4" Dia, 1-17/32" OAL, 5-Flute, 1/4" Dia Shank, Round Shank, IRWIN 1877714
Precision ground 82 deg tip for countersinking most machinable metals, wood or plastic. High-speed steel with black oxide coating for corrosion resistance. 5-flute design reduces chatter for smoother drilling and extended life.