Review on 🔧 OEMTOOLS 25352 Ramp Style Spark Plug Gap Gauge - Spark Plug Gapping Tool for Precise Adjustment and Measurement - Spark Plug Gauge Gap Tool for Improved Engine Performance - Plug Gapping Tool with Easy-to-Use Features by Warrick Infinite

I just tried it because I saw it on You Tube and thought it looks easy to use. However, I have noticed that NGK does not recommend using this tool to use precious metal spark plugs with newer fine wire electrodes ([.] It seems that it can easily damage a platinum or iridium fine wire tip when trying to adjust the gap , or even damage it if you try to measure the gap. If you're using regular OEM connectors then this is probably fine - otherwise I'd use a wire gap tool.