Features and Benefits:?Faster, more accurate drilling: Aggressive feed screw design allows the bit to pull through fast?Versatile: For SwitchBlade Selfeed bits up to 2-9/16"Avoid searching for misplaced feed and set screws. The SwitchBlade replacement feed screw kit comes with 5 feed screws, 3 set screws, and a hex wrench. Self contained storage case keeps everything together within easy reach.