RED Universal Spark Plug Gap Tool Compatible With Most 10Mm 12Mm 14Mm 16Mm Spark Plugs Review

【Universal Fitment】Universal for 10mm 12mm 14mm 16mm spark plugs.Used your desired size feeler gauge for gap thickness.(BUT NOT compatible with 18mm thread and longer style spark plugs.). 【Spring Back Note】Some spark plugs electrode will spring back - this is normal for some spark plugs.If your gap target is 0.44mm we suggest to use 0.42mm this way when it spring back you will get it to 0.44mm. 【Precision Work】 This Spark Plug Gap Tool will give you that perfect gap every time.Simply place your spark plug onto the gap tool perfectly, this made it sooo easy to gap precisely,Great tool. 【Installation】1. Simply place your spark plug into the gap tool.2. Use your desired size feeler gauge for gap thickness.3. Turn the knob with the feeler gauge in place till the side electrode compresses to the desired gap thickness. 【Lifetime Warranty】The Spark Plug Gap Tool from KET comes complete with a lifetime warranty.If there is any problem with the product,please contact us and we'll solve it for you immediately.