OEMTOOLS COMPRESSION TESTER
The OEMTOOLS Compression Tester Gauge Set tests compression 0-300 psi on 14 mm and 18 mm spark plug ports (engine compression) and determines engine mechanical condition.
- Test Compression 0-300 PSI on 14 mm and 18 mm Spark Plug Ports
 - Flexible Rubber Hose Extension
 - 2-Step Adapter 14 and 18 mm