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
Return Policy *
30-Day Risk FREE return for refund or replacement
If you are not 100% satisfied with your returnable items, return the product for a refund.
* Applies to all purchases made on MatcoTools.com excluding Toolboxes, Tool Carts, Diagnostics, Welders, Shop Equipment and shipped items weighing more than 150 pounds; Excludes all Gifts and Branded Apparel items except branded apparel size exchanges for exact items. See your Authorized Matco Tools distributor for warranty or return information on purchases made offline.