Instead of opting for cheaply-made drill bits that usually become dull or break quickly, you can get this 21-piece set of DeWalt bits on Amazon for less than you'd think thanks to a limited-time deal.

There are three tool options to consider when drilling large-diameter holes in thick steel: twist drill bits, hole saws and annular cutters. 1. Twist drill bits. Especially in steel thicker than ...

Bits are sold individually and in multi-sized sets, commonly called drill indexes ... These are robust steel drill bits, good for drilling into wood, plastic or metal. One downside: At high ...

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.

So it’s always a joy to pick up a new trick, especially one as simple as putting a hardened edge on mild steel using a drill bit as a filler rod. This tip comes to us by way of [Jody], aka ...

Men’s Journal aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. The DeWalt 21-Piece Drill Bit Set is on sale for $20—33% ...