Our Spark Plug Gap Tool to Not Gouge or Mark – To achieve the highest performance, you will not only need the best tools and the best skills but you will also need the least amount of mistakes. Our tool eliminates two of the biggest problems with Spark Plug Gapping, gouging and marks, so you can fit the most horses under the hood. <br><br> Package:<br><br> 1 x 12mm Spark Plug Gap Tool <br><br> 1 x 14mm Spark Plug Gap Tool <br><br>