I used it to work on things where it was important to always have the right tool in hand. Since you can't see the overlooked ones in the placer, searching for what you need when drilling in bulk costs you valuable working minutes and doesn't guarantee that you'll find it. Now that I've opened the box, I can see that everything is in its proper location. There won't be any instances in which I take three superfluous puffs of varying diameters while leaving the right one out.