Handy tunnel that goes on your keyring
| Standard / High Energy Spark Plug Gauge & Gapper |
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Gauges and Gaps all Types of Spark Plugs from .020" to .100" (.50mm to 2.53mm). Tapered edge for gauging spark plugs. Specially designed hole with flange adjusts side wire of plug without pressuring center electrode. Spark plug manufacturers do not recommend using a 'Coin Style' tool to adjust the gap on an Iridium, Platinum or Ruthenium tipped spark plug. These precious metals are very delicate and can be easily damaged.
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