- Tapered edge for gauging spark plugs
- Center hole with flange adjusts side wire of plug without pressuring center electrode
- Range .020” to .100” and 50 to 2.53 in mm
All plated and hardened metal parts 6 wires and gap adjusters for standard and electronic ign
SKU: 18-6844
All plated and hardened metal parts 6 wires and gap adjusters for standard and electronic ignition
SKU: 18-0101
Works on both standard and electronic ignitions Simply adjust calibration screw to proper gap size
SKU: 18-0589
Thickness shown in both standard (listed below) and metric (.038–.889) Includes 3-1/2” x 1/2” blade
SKU: 18-8176
16 steel blades Precision blades provide accurate measurements Blades from .010” - .035” are 1/4” w
SKU: 18-6810
Combination of wire and narrow blade sizes to check most ignition gap tolerances Blades are approx
SKU: 18-8180
For 2 or 4 cycle engines Interchangeable with Champion J19M/J17LM
SKU: 18-8250
