I am a fan of the Craftsman 8-inch mach series adjustable wrench. Since this has been added to our tool arsenal, I have not needed to use any of the other wrenches that we have floating around the house and the garage. Craftsman makes quality tools and products and they did not disappoint with their mach series adjustable wrench. I have not had an issue with the wrench head changing sizes when it is in use. In addition, I am easily able to adjust the wrench head to make it larger or smaller without issues. In addition to fitting all size bolts that I have thrown at it, Craftsman makes tools that are comfortable for all hand sizes to use. The mach series adjustable wrench is not too heady and I am able to use it in some awkward positions that some other tools may not necessarily leave that option for. I have officially found my new "go to" housewarming present for those people in my life.