This tool is perfect for removing windshield wiper arms from BMW Mini Cooper's. In the past 30+ years have amassed enough tools to start a business but didn't have anything to remove the passenger side wiper arm from my wife's Mini Cooper until receiving this tool. I tried every configuration possible with my many puller's but they were either too bulky or the jaws tips too big grab the arm edges and kept popping off. Before my tool arrived I resorted to using a plumbing angle stop ferrule puller & cheap battery post removal tool but neither worked without making modifications that would have trashed the tools and that is unacceptable to me. Even cheap Harbor Freight hand tools are warranted for life these days but are not worth anything if you trash them by making modifications with a bench grinder. This tool is simple to use where you can get by using it one handed. Because of its design limitations I do recommend you be careful when cranking down on the hand wheel. Don't slap the tool in place and crank it down with vise grips or you will probably end up breaking off one of the metal base plate tips. After removing the wiper arm nut, spray a small amount of penetrating oil where the wiper opening connects to the stud before using the tool then slowly apply pressure with the hand wheel. I paused for a few seconds in between cranks to allow the pressure exerted by the tool to work and the stubborn wiper arm popped off with no problem. Unlike older GM products that have round wiper stud splines the Mini's are wedge shaped that make them more difficult to remove. Just don't create a future problem by over torquing the wiper arm nut when re installing the wiper arm or you will not have an easy time removing the wiper arm on the next go around. I never thought a tool like this was necessary until owning a Mini Cooper. I am sure this tool would work on other makes and models but I cannot say since my experience is using the tool on the Mini Cooper. Even though I will not be using this tool on a regular basis I am glad to have it added to my tool collection for the price. Hope this helps someone else!