5-pc. Metal Countersink Drill Bit Set

Irwin, 5 Piece, High Speed Steel Drill Bit Countersink Drawer Set. Precision ground 82 degree tip for countersinking 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.