DETAILS Compression Tester Kit for complete testing on gasoline engines — OTC 5606 Kit has everything you need for complete compression testing on gasoline engines, including domestic, imports, motorcycles, marine, and small engines. Helps you test even in today’s limited-space engine compartments. Pro-quality gauge has a zero-adjust feature, chrome bezel and protective boot. Extra-long 25″ flex hose gauge assembly with quick coupler allows easy viewing out of a tight engine compartment. Corrosion-resistant nickel-plated finish.