Set of 5 Diesel Injector Seat Cleaners, comes with centering pilot and T-Handle Clean injector seats when changing orreconditioning diesel injectors Helps to avoid blow-back due to poorly seated injectors Includes: 15mm flat cleaner - Universal applications 17mm flat cleaner - BMW / PS / Renault 19mm angled cleaner - Fiat / Iveco 19mm flat cleaner - Mercedes CR 21mm angled cleaner - Fiat / Iveco