This 12-piece professional oil pressure tester set from YATO is ideal for the diagnosis of worn oil pumps and engines, faulty oil pressure switches and pressure warning indicators. Equipped with a special rubber cap, the tester has a maximum measuring range of 35 bar. The flexible hose enables users to access hard-to-reach oil presure switches. Made of high-quality materials, the tester set is very durable. Including an oil pressure tester and 11 adapters, this tool set is suitable for most engines. The set is delivered in a blow-molded carrying case for easy storage and transport.