Irwin 1877720 Countersink Drill Bits, Metal, Black Ox

Product Features

• Precision ground 82 degree 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.
• Material - Metal.
• 3 Piece set.