Used 4 different sockets so far for various vehicles, both foreign and domestic and they all fit just fine. Haven't run into a filter yet that wouldn't fit any of these sockets. The case is a nice bonus.
The wrenches i have used so far fit perfect. Giving it 4 out of 5 because the wrenches vibrated loose in shipping and are hard to snap into top of case. They fall out every time you open case.