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United Kingdom, Belfast
1 Level
727 Review
30 Karma

Review on Universal Billet Aluminum Spark Plug Gap Tool - Cosmoska 12mm Gapper for Engine Threaded Spark Plugs (Blue) by Roderick Reynolds

Revainrating 4 out of 5

Generally good - spark plugs

Good product - nice aluminum body and large knurled knob - wish the screw was steel instead of aluminum or at least 1-2 larger in diameter. A better design would be a shoe that would flatten the tip of the fork instead of flexing it. Now he's bending the tip forward and the faces aren't quite parallel. The shoe causes the tip to be parallel to the tip of the electrode, creating a larger contact area between the spark and the flame. But of course nobody will build such good devices because they are too expensive for this market.

Pros
  • Universal fits all 12mm thread spark plugs
Cons
  • Compatibility