GearWrench 164 Spark Plug Gap & Feeler Gauge Set

Use to set and measure spark plug gaps plus other ignition clearances from 0.2 to 0.2 (0.2 to 1.2mm). Six wire gauges cheque spark plug gaps and 12 straight blades cheque other clearances. It includes a double-ended electrode tool for easy adjustments. Blade Lengths: 3-5/16 long