Thirteen or fourteen years ago, my brother and I each bought identical 4" vises from the Homier traveling tool sale. His broke the first time he used, less than a week later. Mine was still good and used regularly 5 years later when we sold the place.
I currently have a 4" one mounted a workbench and now I can't remember whether I got it at Northern Tool or at Sears. I can't find any brand name on it, but it does still have the little sticker on the side that says "Made in China".:laughing: However, so far it's been a good one for nearly 6 years.