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 ...

U.S. tariffs on steel and aluminum imports are poised to escalate costs for the oilfield service companies behind North ...

Working with hard metals requires the best cobalt drill bits. We tested top picks to see which bits could bore through the toughest metals. Check out our reviews and discover which one came out on top ...

The video below shows the process in all its simplicity. The tool steel of the drill bit is far harder than the mild steel of the hammer, but still soft enough to take an edge, and the resulting ...

With the fate of repetitive motion injury looming due to the need to drill 1,200 holes ... from inside the tool. The tool itself is mounted into a sturdy welded steel frame that allows him ...

Discover Multicon, Cemecon's latest Hipims coating for enhanced milling and drilling of cast iron and steels, offering up to ...