Almost any general-purpose twist bit will do a decent job of drilling holes in metal. In fact, most drill bits labeled specifically for metal are manufactured to drill through various materials, ...

Drilling holes can be quite time consuming work, particularly if you have to drill a lot of them. Think about all the hassle of grabbing a part, fixturing it in the drill press, lining it up, double ...

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 ¼", ...

A small copper tool found in a museum drawer is now confirmed as the oldest rotary metal drill in ancient Egypt, dating back 5,300 years.

Extensive metallurgical testwork and technical/infrastructure studies ongoing towards the planned publication of a PFS ...

This 1917 Armstrong No. 25 churn drill derives its name from the up-and-down repetitive action of the drill stem and bit, not unlike an old-fashioned butter churn. Churn drills could produce from 20 ...

Vancouver, British Columbia, February 25, 2026 - TheNewswire – Arizona Gold & Silver Inc. (“Arizona” or the “Company”) (TSXV: ...