<p>Accurately Set Spark Plug Gap</p> <p>Made From 7075 Aerospace Grade Aluminum<br />Hard Anodized Black For Superior Finish<br />Fits 12mm and 14mm Spark Plugs Respectively</p> <p>Our Boost Monkey Spark Plug Gap Tool will help you achieve a perfectly gapped spark plug every time. The days of banging your spark plugs and guessing are over.</p> <p>Simply screw your spark plug into the Boost Monkey Spark Plug Tool. Insert a feeler gauge. Use the adjustment knob to squeeze the electrode to the desired gap.</p>