Universal Fitment: This tool is universal for 10mm 12mm 14mm 16mm spark plugs. Use your desired size feeler gauge for thickness.
Good Compatibility: tool is compatible for 6061, for 5671A, for BKR9EIX and similar spark plugs.
Professional: The tool will give you the perfect every time, just place the on the tool.
Maintenance: If the tool gets wet, dry it with compressed air and apply lubricant to prolong its life.
Bounced: If your clearance target is 0.44mm, we recommend 0.42mm, so you'll get 0.44mm when it bounces back.