Spark Plug Tool - Car

Tool for adjusting the spacing between the electrode of the car's spark plug, created in FreeCAD 0.20.2. I used a used and old AC DELCO 93206675 spark plug to take the measurements. For the ceramic part, I used a single measurement without considering that it tapers towards the tip, resulting in a 1mm difference. I incorporated a 1mm tolerance in the tool's circles, but even so, I had to sand it down after printing to fit the spark plug into the holder.