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 ... for larger drill bits, but the ...

DeWalt's drills and their compatible bits are some of the most popular tools on the market, but are the drill bits worth the ...

After repeatedly drilling through various metal types with all selected models, we recommend the DeWalt Industrial Cobalt ...

Almost any general-purpose twist bit will do a decent job of drilling holes in metal. In fact, most drill bits labeled ...

To that end, this beginner lesson in heat-treating steel from [Blondihacks] demonstrates why it can be beneficial to trade some of the metal’s toughness for improved hardness and just how to ...