Did your Grandpa, uncle or neighbor have one of those old "leg" vises where the rear jaw had a leg that went to the floor? Over time a lot of those old vises got worn, loose and either were stuffed ...

Why You Want One: A vise is handy for all manner of repairs and projects. Mounted on your workbench, it holds metal firmly in position while you cut it, grind it, file it, or cut threads in it or on ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...