Not all vehicles have bolts built into the brake discs or brake drums. I have a few and self-service like changing brake pads, changing tires or flushing fluid is always a chore. You'll need to lift the wheel and tire and line up the bolt holes while you insert the cleats! No fun. I love this tool. It's perfect for the job and very reasonably priced considering how frustrating it is. Get it if your car is missing brake mounting bolts. You will thank me later.