Irwin 1877793 Countersink Drill Bit, Black Oxide, 5-Piece
by IRWIN
- Precision-Ground 82 tip for countersinking into most machinable metals, wood or plastic, Made from industrial grade high speed steel for increased durability, Includes a black oxide finish for added corrosion resistance, Five flute design reduces vibration for smoother drilling and extended life, 1/4-Inch round shank fits all handheld and stationary drills
