When should you use an impact driver and when should you use a drill? It's not quite as straightforward as it might seem.

At first glance, an impact driver looks a lot like a drill, but this powerful tool is seldom used for making holes. While there are several things you should know before buying an impact driver, the ...

One final difference: Hammer drills and standard drills use a chuck that can accept a variety of bits, but an impact driver ...