|A 10X magnifier of the highest optical quality with excellent resolution and perfect illumination. This is the type of tool recommended by spark plug manufacturers such as Champion for the inspection of spark plug firing end insulators. Requires two "C" batteries (not included). 1 lbs (0.5Kg) shipping weight.|
When I clean my spark plugs, it takes extra effort to clean the little lead balls out from the base to the electrode deep into the dark area of the spark plug. I had hoped this illuminator would improve my view of this area. It does not improve viewing at all. The price is expensive but at least Aircraft Spruce let me return it.