Much stronger product than i thought. Broke apart a one inch thick bolt in half with just a little extra effort. Breaks stuck on bolts with ease. The only thing i can say about the tool needing anything is there isnt much of any grease inside the tools for longevity. It is as simple as taking of the snap ring and adding some grease though so for a 50 dollar tool it is a great buy for anyone looking to do rough to take off bolts without a compressor.