These bits have high-speed steel bodies with a titanium coating ... wear down after a couple of uses on their tile. Drill Brick And Concrete With The Warrior Masonry Bit Set In a similar vein ...

Carbide is different from the steel that makes up the rest of the drill bit. Whether it’s a standard concrete drill bit that goes into a three-jaw chuck tool or an SDS-plus bit or SDS-max bit ...

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.

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 ...

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 ...