Maddox MT91 Deluxe Diesel Compression Test Kit, Gauge 0-1000 PSI, Hose Length 15 inches, 4 Glow Plug Adapters (10 mm, 12 mm, 14 mm, 18 mm), 4 Injector Adapters (21 mm, 24 mm, 25 mm, 27 mm), Accuracy ±2%, Case Included, Additional Accessories: Right