IRWIN Tools Black Oxide Countersink Drill Bit 5-Piece Set 1877791
- Made from industrial grade High-Speed Steel for increased durability. Black oxide finish adds corrosion resistance..
- Five-flute design reduces vibration for smoother drilling and extended bit life..
- Precision-ground 82-degree tip drills countersink holes into most machinable metals, as well as wood and plastic..
- 1/4-inch round shank fits all handheld and stationary drills..