must have a very tough lock
i am not looking for a folding prybar
im looking for edge retention and ease of sharpening
it will be used to cut vines, make feather sticks light bushcraft task as i cant carry a fixed blade for that kind of emergency, more of an edc and woods companion but also an edc, ive got my eye on benchmade but there is probably a better solution
Do you really need a tough lock? OR are you actually looking for a reliable lock. If you are not looking for a folding pry-bar, I would guess that what you really want is a reliable lock. My experience has been that most folders from top name manufacturers have reliable locks.
"edge retention and ease of sharpening"
These properties are opposites. To get more of one, you give up some of the other. This is less of a problem if you use diamond hones. Not many non-stainless folders out there. Probably going to have to go for stainless or close thereto.
- Steels with a lot of vanadium hold an edge longest, but are most difficult to sharpen. Pricey, too. D2, S30V, et al.
- I like VG10, 154CM, N690, or 440C for their combination of edge retention and sharpening ease. That is to say a stainless steel with 1 to 1.1% Carbon.
- Other folks like steel that holds an edge not quite as well, but is a bit easier to sharpen such as AUS8.
- For others, the edge retention of 420HC is enough and they just sharpen a bit more often.
You will have to be the judge of where on the sliding scale of edge retention/ease of sharpening you will feel comfortable.
How big a blade are you wanting to have?
I like a 3" blade for EDC because it is legal pretty much no matter where I go and works OK for Camping. But a lot of folks like a bit larger blade for both, but especially for camping.
If you are going to EDC this, does that mean you don't want to look at folding knives that come with a sheath instead of a clip? I tend to use a folding knife with a sheath when I camp. Usually such knives have a larger, thicker handle that is more comfortable for extended cutting chores.
Think you still have some decisions to make about what you want the knife to be/do.
But my recomendations would be
AUS8 - Kabar Large Dozier. 3 1/2" blade that runs about $26 online. Comfortable handle that still slips into the pants pocket nicely. Taiwan-made. Lockback.
154CM - Benchmade Griptilian with 3 1/2" blade. runs about $65. US made. Axis lock.
ACK! I talk too much!