I don't carry any of the multi tools, used to, but their overkill and the uses to weight ratio is too high. There aren't a lot of screws in the wild.
I have a Camillus, Army pocket knife with a 3" blade. It also has a can opener, a bottle opener/screwdriver and a awl. That's about all I need, It's worked well for a lot of years.
I have a Camillus, Army pocket knife with a 3" blade. It also has a can opener, a bottle opener/screwdriver and a awl. That's about all I need, It's worked well for a lot of years.