These days when the cordless drill seems to have replaced the resevrsing 3/8" corded drill as a standard, a lot of amateurs and even pros may wonder why they need a corded drill. Well, a cordless drill is a wonderfully handy thing, particularly when working on a remote job site, but even the biggest 18 and 22 volt drills are limited in the amount of power they can generate; sometimes you need a really big, honkin' drill. Drilling heavy hardwoods, going through mild steel- these are tasks where a cordless drill starts to bog down or overheat but this 5.5 amp drill just keeps turning.