I bought these 3 sets of spark plug gauges because of the price. This type of spark plug sensor is basically the same and made in China, probably by the same manufacturer. Most similar sensors are usually $3 to $8 or more for just one sensor, for just over $3 I got 3 sensors and free shipping. I wasn't expecting much for the price as I thought the finish would be dull and a bit rough. . I received a very nice set of spark plug gauges. They are brand new, the surface is smooth and very shiny silver chrome. Measurements are given in both inches and millimeters as these tools are commonly used to measure disc gaps. It has Maxcraft embossing on the front and of course China on the back. I needed a simple spark plug gap gauge to test the spark plugs for my lawn tractor. I am very happy with it. I now have spares in case I lose one or I can give the other two people in my family who might need them. I would recommend them as I am very happy with the value for money.
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