I’ve been hearing a lot about impact drivers lately, and have considered purchasing one. I’m a homeowner, not a tradesman, but I’ve done a lot of remodeling over the years. I’ve always used corded or cordless drills for driving screws. My two cordless drills are a 9.6v DeWalt and a 14.4v Bosch. Each drill is over ten years old, but I recently had the batteries rebuilt and they perform like new. I’ve considered buying just the impact driver to work with the batteries I have, but haven’t had much luck finding one. Most of the screws that I use would be for door hinges, occasional cabinet or furniture work, and other projects of this scale. I have a Milwaukee right angle drill that I’ve used for larger stuff, like lag bolts. My question is; Is it worth buying a whole new cordless tool, batteries, and charger just to drive screws? Is an impact driver really that different than using a regular cordless drill? If so, what is the minimum voltage size I should look for?