Pipe Wrenches
When you use a pipe wrench on a steel pipe the teeth of the wrench sink into the material as you apply force. This makes a properly selected pipe wrench a great tool for loosening cylindrical metal objects. However, it's important to use the right tools for every project, and pipe wrenches aren't an ideal choice for handling hexagonal fasteners since the teeth in the jaw will damage the faces of the nut or bolt.
