This machining process looks simple at first, but the pattern slowly forming on the metal makes it incredibly satisfying to watch. As the lathe turns and the tool presses in, a clean textured surface ...

Don't have a lathe you can work metal on? The next best thing is just watching it happen. Here's one cutting a spiral pattern into a workpiece, much like the texture on metal stairs used to increase ...

Oil grooves are used to lubricate the inside of a bearing, and can come in many forms — from a single hole that takes a few drops of oil, to helical patterns that distribute it over the entire ...