BikeMaster Cylinder Compression Tester

Manufactured with brass and steel fittings, you can quickly check the condition of piston rings, valves, etc.

• Includes 10mm, 12mm and 14mm adapters to fit a variety of engine spark plug sizes for versatile testing
• Manufactured with durable brass and steel fittings for reliable, long lasting use
• Includes 10, 12 and 14mm adaptors