Spark Plug Tool Universal Metal Black Solid Caliper Gapper for 10mm 12mm 14mm 16mm _x000D_ _x000D_ _x000D_ Feature: 1. Universal Type: This spark plug tool is universal for 10mm 12mm 14mm 16mm spark plugs, you can use desired size feeler gauge for gap thickness._x000D_ 2. High Accuracy: Spark plug caliper can give you the perfect every time. Just place your spark plug perfectly on the tool._x000D_ 3. Recommendation: Some spark plug electrodes will rebound, which is normal for some spark plugs. If your target is 0.44mm, we recommend 0.42mm so when it rebound, you get 0.44mm._x000D_ 4. How to Maintenance: If spark plug gapping tool gets wet, please use compressed air to dry and apply lubricant._x000D_ 5. Premium Material: Made of high quality metal, sturdy and , increasing the service life of the spark plug gapper. _x000D_ _x000D_ Specification: _x000D_ _x000D_ Item Type:SparkPlugTool Material: Metal Fitment: Universal for 10mm/0.39in 12mm/0.47in 14mm/0.55in 16mm/0.63in Spark Plugs. Compatible with for 6061, for 5671A, for BKR9EIX and similar spark plugs. Not compatible with 18mm thread and longer style spark plugs _x000D_ _x000D_ _x000D_ Package List: 1 x SparkPlugTool _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_