Universal Engine Spark Plug Gap Tool Gapper Caliper 10mm 12mm 14mm 16mm Black
$15.59
For most 10mm 12mm 14mm 16mm spark plugs. Simply place your spark plug onto the gap tool. 1 x Spark Plug Gap Tool. So if your clearance target is 0.44mm, we suggest you use 0.42mm. In this way when it springs back you will get it to 0.44mm.