* Designed to test vehicles with M10, M12, M14, M18-thread spark plugs; delivered with extensions, thread chasers and service kits 
* Easy operation 
* Checks valves, piston rings, gaskets and cylinder heads
* For cars, vans and motorcycles
* Pressure relief valve for repeated test of cylinder without removing gauge (dual-scaled; 83mm dia.; 0~300psi/0~20bar)
						
				
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