Many applications, usually involving either mounting parts or routing wiring and other materials, require holes to be drilled or punched into sheet metal. As with any other typical fabrication task, ...

Almost any general-purpose twist bit will do a decent job of drilling holes in metal. In fact, most drill bits labeled specifically for metal are manufactured to drill through various materials, ...

Suppose you need to modify an enclosure by drilling a hole in it to install a drain (or for some other purpose). How can you do this in a way that leaves a perfect hole with a minimum of work? First, ...