A must for relining rear disc brake calipers that incorporate a screw-type parking brake mechanism. Eight precision adapters to fit most domestic and many imported cars with four-wheel discs. Includes 3/8" square drive adapterto use with 3/8 '' drive tools. Adapters engage piston, which is then screwed back into caliper to make room for new pads. Will not damage piston or boot . Applications include BMW , Ford , Honda , Mazda , Mercedes , Mitsubishi , Nissan , Toyota , VW , Audi , GM , Chrysler , Saturn and Subaru . Packed in blow mold case .