Each bit is made from high-grade M42 cobalt stainless ... While cobalt drill bits are unrivaled for drilling through metal, ...

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

There are a lot of ways to make the same hole using different drill bits. Sometimes ... It’s designed for drilling metal, but it will also drill wood. There are forms of this drill bit that ...

The last piece of the puzzle is what you're actually planning on drilling into. Broadly speaking, drill bits fall into three different material-based categories: wood, metal, and masonry.

Every farmer or mechanic has a drawer stocked with dull or broken drill bits ... with the base metal of that bit. Coatings are advantages, but not permanent solutions to drilling problems.

DeWalt's Black and Gold drill bits have the added bonus of a Black Oxide treatment "for greater wear resistance." According to Cleveland Black Oxide Quality Metal Finishing Solutions, Black Oxide ...