Easy to read markings to set gaps quickly and easily
Range: 0.020 to 0.100 in (0.5 to 2.5mm)
Tapered hold adjusts electrode
US Patents D673370 and D685580
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.
