PQY Universal Spark Plug Gap Tool with Feeler Gauge – 10mm to 16mm – Red

Description

This professional-grade gap tool is designed for precise electrode adjustment on most 10mm, 12mm, 14mm, and 16mm spark plugs. The kit features a durable red anodized aluminum body and includes a 32-blade feeler gauge for high-accuracy measurements. Its threaded adjustment knob allows for incremental, controlled pressure, ensuring a perfect gap without damaging the spark plug’s center electrode or porcelain insulator.

Instructions:

1. Identify the required gap for your vehicle and select the corresponding blade from the included feeler gauge.
2. Place the spark plug into the tool’s center cradle, ensuring the electrode is positioned directly under the adjustment screw.
3. Insert the selected feeler gauge blade between the ground and center electrodes.
4. Slowly turn the knurled adjustment knob clockwise to apply pressure until the electrode fits snugly against the gauge.
5. Rotate the knob counter-clockwise to release the plug once the gap is accurately set.

Precaution:

Avoid over-tightening the adjustment screw to prevent snapping the ground electrode or cracking the internal ceramic insulator.