I bought a 4v small screwdriver from Costco and I liked it so much that I bought two more thinking that when this dies, I want to have another. Well, it has lasted me for a long time and it still goes as great.
It is light and small. I didn't use it for deburing, now I wish I had but I use it to for taking up the cowl, wheel pants, etc that has screws. It makes the annual/oil change that much easier.