This set of tamperproof Star* 5-sided 1/4"D security socket bits from TS10 to TS40 is essential for various applications, particularly popular for use on Renault, PSA, and Mercedes-Benz air conditioning, injection pumps, or ECUs. The product effectively allows users to access and work on components secured with tamperproof star fasteners, providing necessary security and compatibility required for servicing specific vehicle systems. Features and Benefits Essential set of tamperproof Star* 5-sided 1/4"D security socket bits from TS10 to TS40 Popular for use on Renault, PSA, and Mercedes-Benz air conditioning, injection pumps, or ECUs Provides access to components secured with tamperproof star fasteners Ensures necessary security and compatibility for servicing specific vehicle systems