Irwin 12412 5/8″ HSS Countersink

• Precision ground 82 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