Perfect for automotive uses.  Handy for any DIYer.
I needed these to cap lines and plug ports in my brake system as I was doing a proportioning valve rebuild.  These work perfect with their size range to find the right one.  I have used them with my Honda's brake system as well as the clutch hydraulic system.  They are good quality.  The factory plug was forced out of my prop valve when the seals blew inside.  After I rebuilt it I needed a replacement plug for the pressure relief valve.  After the rebuild, I was able to take one of the plugs in the kit and trim its length to fit perfect in the hole to keep out any contaminates and debris.  It has been in there now for 8 months and is working exactly as the factory original did.
Rating: 5 stars