Sometimes “more is better.” In fact, a well-known cell phone company has designed an entire ad campaign around that whole idea. But when it comes to tools, particularly Power Drivers, we would argue that the “right ONE is better.”
Consider this scenario: You’re up on a ladder, perhaps running some conduit, when you realize your #2 square bit isn’t in your tool belt. In fact, it’s still in your tool bag, hidden somewhere in the box of several dozen drill bits you keep around.
Or just as bad, imagine you are working in a ceiling fumbling to switch out your #2 Phillips bit with a 3/8” nut driver bit, when you drop them down into a dark wall.
Both cringe-worthy and frustrating scenarios, especially when time is important.