Even if you're only an occasional DIYer, there always seem to be holes that need to be drilled and screws that need to be driven. So it's no surprise that a cordless drill/driver tops the list of must ...
I've been thinking about buying one of these but I don't know if they are just a gimmick. Also, if they genuinely work well how good do your bits need to be in the first place to be worth sharpening?