Features: * Allows Caliper to convert to a rotor or drum measuring gage * Will measure all brake rotors or drums up to 12" * Includes set of clamps, set screws, Allen wrench, set of 3-3/4" contact points, set of 3/4" pointed contact points and set of 3/4" flat contact points in a plastic tube * Includes a Storm 3C301 digital caliper