Replace this if your old rubber grip is dirty, loose or just old. It will refresh your handpiece by having new snug fitted rubber grip.Drill is not included. It is used for reference only. The highlighted blue circle is where the rubber grip goes. Just ask for more information if you need this or any other parts of these KUPA & Medicool drills! If your drill needs to be serviced please inquire with us as we do have a repair service for these drills. Thank you for understanding.