Universal diesel engine compression measurement kit. Suitable for trucks. passenger cars and technical diesel engines (refrigerators. tractors. boats, etc.). The kit includes a gauge and adapters. with which you can measure compression from the injector holes and glow plug holes. 0-70 bar. Includes adapters for spark plug and injector holes with threads M8x1. M10x1. M10x1.25. M12x1.25. M18x1.50. M20x1.50. M22x1.50. M24x1.50. M24x2.0. In a strong plastic case.