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Countersink Drill Bit, High Speed Steel, 1/2-In.

Countersink Drill Bit, High Speed Steel, 1/2-In.

Irwin



1/2", high speed steel, countersink drill bit, tip is milled & precision ground to 82 degrees for countersinking into most machinable materials, engineered with premium high speed steel with black oxide coating for corrosion resistance, features 5 flutes for reduced vibration, 1/4" round shank.