TEST EQUIPMENT AND TOOLS
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Spark Checkers 
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| S-48 Eight Wire Spark Checker | |
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Highest quality, versatile open-gap spark checker, for 1 to 8 cylinders. This "sparky" can be separated into two 4-wire halves by loosening two wing nuts. Furnished with two ground straps for separate 4-wire use. Sliding mechanism adjusts four gaps which are marked from 1/4 to 1/2 inch as well as in millimeters. Black background for easy visibility is recessed to prevent carbon tracking. Molded Valox is highly resistant to chemical, UV and physical damage
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