Gauges and Gaps all Types of Spark Plugs from .020" to .100". Tapered edge for gauging spark plugs. Specially designed hole with flange adjusts side wire of plug without pressuring center electrode. Metric on the back side too!

USPS FIRST CLASS MAIL SHIPPING WITHOUT TRACKING!  PLEASE SEE BELOW

Please note that your item is sent in a yellow bubble pack without tracking as they cannot go through the post office machinery so it takes a few extra days Some times up to 2 weeks. If after ample time your order does not arrive please send me a message DO NOT open an item not received case. Ebay penalizes us big time for post office lost, damaged etc