Irwin 3/8 In. 82 Degree Black Oxide Countersink Drill Bit
IRWIN® high speed steel countersinks feature a precision-ground 82-degree tip that makes them ideal for countersinking into most machinable metals. They’re made from industrial grade high speed steel.
Black oxide finish for added corrosion resistance
The five flute design reduces vibration for smoother drilling and extended life
1/4 In. round shank fits all handheld and stationary drills
Increased durability