I have used this product on the farm for many reasons. Breaking stuck nuts on bolts that won't loosen, this breaker will get the job done. I use it to loosen the lug nuts on my F150, 4x4 truck, they tighten to 150 pounds. If they use an air wrench, a small wrench will snap off the two-piece nuts and leave you alone! This one now has a jack with a 21mm socket to replace the toy hardware I bent changing tires! Lewis b