Plus 1 on liner/frame locks.
Another thought..
I’ve got several serrated blade knives. I’ve yet to find them equal to or better than a straight blade.
There may be an instance or two where they are advantage but I’ve not found it.
All my purchases from now on will be straight blade.
JMO
I'm with you! I've got a lot of half-serrated, half-straight knives. I quit buying them a long time ago. Supposedly, they are better for cutting seat belts to get yourself or someone else out of a car in an emergency situation where the seat belt's buckle can't be accessed, or cutting through similarly tough material.
I can see where that might be true, but do I want half my knife's blade given over to a function that I'll only find halfway useful in one-in-a-thousand situations? No. I don't think I'll ever really need serrations. I'm getting older, but I'm still strong enough I can muscle my way through any conceivable material that needs to be cut with a straight blade, so why compromise (and I do look at it as an unsatisfactory compromise) my good knives. Save the serrated knives for cutting bread!