"If you're installing standing seam sheet metal to 2½-inch square steel tubing ... The moment the drill bit breaks, your hand could slam painfully against the metal. If you're working on a ...

Especially in steel thicker than ¼", twist drill bits will require extra pressure, lots of lubrication for cooling and some profanity — especially when trying to use a hand-held drill in an ...

That had 300 LEDs and came out great, but at the cost of manually drilling 300 holes in sheet steel with a hand drill. Looking to expand his wall of balls to four times the original size ...

It turns out that a hot solution of alum (ammonium aluminum sulfate), which is available in the spice rack of your local supermarket, will dissolve the steel drill bit without reacting with the brass.