Lisle 50850 Ignition Spark Tester with Jump Feature Stone Grit_280 This master kit covers R12

This master kit covers R12 and R134a systems

Stops current and inhibits future corrosion due to moisture and acid

Drive Size: 3/8"

Set Includes: (1) Female Coupler (1) Female Plug (3) Male Plugs

One Tools Helps Make Installing New Pads on Front and Rear Brakes Quick and Easy

Lisle 50850 Ignition Spark Tester with Jump Feature Stone Grit_280 This master kit covers R12A 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.