Description: 【Wide Compatibility】: This Spark Plug Gap Tool is designed to fit standard threaded spark plugs of 10mm, 12mm, 14mm, and 16mm, making it suitable for a variety of car and motorcycle models. Please note that it is not compatible with 18mm threaded or long-reach spark plugs 【Aluminum Alloy Construction】: Crafted from aluminum alloy, this Spark Plug Gapping Tool ensures stable performance and long term durability, making it a reliable choice for consistent use in various maintenance tasks 【User Friendly Design】: The Spark Plug Gapper features an easy to use mechanism where you simply place the spark plug on the tool, select the desired thickness using the feeler gauge provided, and tighten the knob for quick and convenient adjustments 【Precision Adjustment Tips】: To achieve accurate adjustments without issues, it is recommended to use a feeler gauge with a slightly smaller gap than required. This ensures accurate tuning of spark plugs for optimal performance 【Versatile Application】: Ideal for automotive repair and maintenance scenarios, this spark plug gap adjustment tool enhances efficiency by providing an effective solution for adjusting spark plugs across different vehicles Specification: 12.2cmx3.2cmx2.6cm/4.80inchx1.26inchx1.02inch Package Includes: 1 Spark Plug Gap Tool with Feeler Gauge