Description

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

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.