12mm Spark Plug Caliper, Spark Plug Space Tool Universal Spark Plugs Gapper Gapping Kit

CONVENIENT: Perfect Tool for Boosters, Great DIY Mechanics - Small, portable and solves a real problem. INSTRUCTIONS: Simply put the spark plug in one end and twist the knob at the other to apply smooth, even, and easy pressure to close the Space until the right measurement is found. QUALITY: The easiest way to improve your workbench and boost engine performance - top tier auto performance is constantly evolving, our plug allows you to never have such out dated worries again while setting your spark plug gap. Just set it, forget it, and go enjoy the open road. FUNCTION: Use Professional Garage to Easily Prevent Spark Plug Wire Marks or Nicks for Optimal Spark Plug and Engine Performance. size:12mm Material:metal colour:blue Package Contents: 1 x Spark Plug Caliper Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.