Sometimes I like doing a mechanical work and I learn a lot in having the right tool for the right job. I tried to fix my muffler pipe on my car and I was very determined. I actually jacked up the car put my jack stands underneath to make sure the car couldn't fall on me. When I tried to get the old muffler bracket off it was too rusty. So I let the car down off the jacks and went to purchase an electric impact wrench. The wrench worked great I just had a hard time holding on to it under my car. Word of advice always wear gloves and safety glasses.