Dad's birthday is coming up and I'd like to get him a multitool. But ever since he got his folding utility knife with a replaceable blade a few years ago he has sworn off knives he has to sharpen. I don't think he'd carry around a multi unless it had this feature. If the utility blade was in addition to a regular blade I think that would work. Does anyone make such a tool? If not, why? Me, I like a good carbon steel blade, mostly, I guess, because I think it's cool. But Dad's over that, he just wants it sharp, and when it's not, just switch it out. I have to admit, I see his logic.