IRWIN Countersink Drill Bit Set - Industrial Grade High Speed Steel 5 Piece

Precision Ground 82° Tip For Countersinking Most Machinable Metals, Wood, And 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 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" round shank fits all handheld and stationary drills