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 ...
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", ...
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 ...
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10 Types of Drills and How to Use Them

Back in the day, carpenters used brace-and-bit drills. For lighter jobs, manufacturers came up with a gear-driven model. More ...
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The cordless drill is indispensable for maintenance and repair jobs around the house and on your car or ...
One final difference: Hammer drills and standard drills use a chuck that can accept a variety of bits, but an impact driver ...