We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › When you need to precisely drill through metal, cobalt drill bits are the only answer.

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 ...

Howard Hughes Sr. revolutionized the drill bit more than 100 years ago to accelerate the oil boom that made Houston and Texas the nation's energy capital. Today, his legacy company is aiming to make ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you plan on drilling into brick, concrete, or stone, you’re going to need to use a masonry drill bit.

ATLANTA, May 6, 2025 /PRNewswire/ -- Diablo Tools ("Diablo"), which offers a solution-oriented range of best-in-the-world and best-for-our-world products for the professional user, unlocks new levels ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Doug Mahoney Doug Mahoney is a writer covering home-improvement topics. He ...

A reliable, everyday metal drill bit that offers extreme durability and maximum efficiency simply hasn't been an option—until now. Diablo's revolutionary Metal Demon™ Drill Bits for Mild, Hardened and ...