If you are tired of stripped teflon retention screws and having to take out rotor plugs to get to a nut to get your supercharger back together well this kit is a must have for you. The kit contains all the needed tools and hardparts to repair stripped 6/32" teflon retaining screws at the racetrack or at your shop. The kit includes a special installation tool, drill bit required for proper diameter and countersinking, and five threaded alloy 6/32" inserts. Extra or replacement inserts will be sold at an additional $1.65 each part #470-0250. Kit includes detailed instructions.