These drills were workhorses. We are building homes and offices in the jungles of Central America and I brought this set from the US. An impact wrench makes a big difference and saves us a lot of time compared to the corded drill we use. The standard drill bit in the set also has its own weight and drills great holes with a lot of power. The batteries charge quickly and the indicators on the back help you plan your day. The only downside to the drill is that the button that selects between forward and reverse is pretty easy to press while I'm holding the drill, which means I sometimes toggle it back mid-ride. I got used to it and changed the grip, but in my opinion the DeWalt's switch position is better. Otherwise I'm a complete novice. These are the best drills I've ever had.