The average do-it-yourselfer hates to drill metal, especially steel. We don’t know how many questions readers have submitted and we’ve answered on that topic over the years. Even the most enthusiastic ...

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Shop Castle Brooke Cobalt Drill Bits Assorted Sizes HSS Gold Cobalt Jobber Drill Bit Set - Massive 139-Piece Metric & ...

A hole is nothing. Or more precisely, it’s the absence of something—wood, metal, concrete, or any number of different materials. Since holes are nothing, why do we care about them and how to make them ...

We independently review everything we recommend. We may make money from the links on our site. Learn more› By Doug Mahoney Doug Mahoney is a writer covering home-improvement topics. He spent 10 years ...

A drill bit is what actually cuts into the rock when drilling an oil or gas well. Located at the tip of the drillstring, below the drill collar and the drill pipe, the drill bit is a rotating ...

I just got a set of Dewalt Titanium drill bits with the hope of reaming out a couple of holes that were too small. One hole was .49" and needed to be .5", and the other was .36" and needed to be .375" ...

When I was drilling through a hardened steel I went to a specialty metals shop and they recommended cobalt bits. They were also much cheaper than lows but unfortunately have since gone out of business ...

See a letter "A" on your drill bit? You're holding the first and smallest size in the letter-gauge drilling system. Perhaps unsurprisingly, this standardized series runs alphabetically from A to Z. On ...

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