Ignition Spark Tester Test Leads and Adapters New and improved design has

New and improved design has a self-centering knock-out for full punch removal with less tear

Best results will be achieved using a vac-assist random orbital sander

Provides easier access in hard to reach places

Easy-to-read markings on both sides

Ignition Spark Tester Test Leads and Adapters New and improved design hasFeatures and Benefits: Quickly checks spark at plug wire A handy tool to check ignition spark without removing the spark plug The tool is specially calibrated to measure ignition voltage Works on both standard and electronic ignition systems Easy to use Simply adjust calibration screw to proper gap size. Attach spark plug wire to end of tester. Clamp tester on engine to ground. Crank engine and check for spark. Skin packed. Shipping wt. 3 oz. WARNING: