This 10X magnification illuminated loupe will reveal even the smallest defect in spark plugs. Use it every time you clean your plugs to check for cracked insulation, fractured or pitted electrodes, and foreign deposits, that can lead to engine failure. Requires 2 "C" batteries (not included). 1 lbs (0.5Kg) shipping weight.
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Complete spark gapping kit includes Heavy Duty Gapper, Feeler Gauge, Gap Expansion Tool, and Electrode Erosion Gauge. Precisely sets gap to within .001" and checks to see if they are still serviceable.
Chaser cleans threads in spark plug hole of dirt, carbon build-up, and metal particles. Double ended for both 14mm and 18mm threads. Neoprene band on hex drive holds tool securely in any 13/16" deep-well spark plug socket.