- Set for testing cylinder compression pressure on gasoline engines
- Provided with mostly common used spark plug adapters,
- sizes are:
- M10 × 1.00,
- M12 × 1.25,
- M14 × 1.25,
- M18 × 1.50
- sizes are:
- Includes aluminum test tubes, fitting in-line and V-shape engines.
- Rubber tube equipped with an enhance locking design, preventing the adapter from being left on the spark plug hole when disconnecting the rubber tube
- Made In Taiwan