Did you know that our drill bits are made from a dental lab and are high quality carbide? On average, you should be able to use the bits for 12 to 15 repairs before you need a replacement. Two bits come with a Dremel drill in our professional windshield repair kit. We have several different types: flat, pointed, and round (ball tip). Please call if you have any questions. We also offer a carbide scribe if you don’t want to drill. Everything you need for quality repair can be purchased separately to make your own auto glass repair kit.