I try to only buy tough folders! I feel that my current edc list are all tough folders, starting with;
- LS SR-1
- ZT0200
- ZT0500
- JWS SD-3 G-10
- JWS SD-3 LSCF
- Mike Irie Model 11
- BM Bone Collector large
- Spyderco Vallotton
- Kershaw Speedform
- Boker Titan Defender
- BM 275 Adamas
These are the ones I've been edcing for the past 4 to 5 months. Though the JWS SD-3's are a beautiful knife to look at, they are built tough. Both have ~.080" thick liners, .157" thick blade, and both are solid at 6.5-6.6 ounces. The Kershaw Speedform is a solid little bugger that I bought because I had committed to one and later thought it would be a lightweight, was I surprised. The newest knife, the BM 275 Adamas is one tough customer so far!
I don't think I could pick just one from the above group as they are all equally tough in my mind!
With all this said though, my toughest chore on a normal day would be to cut cardboard, where most days are simply paper, and maybe sharpening a pencil. I like the idea of a tough, and stout folder which is why I gravitate towards them. I just feel that any of the above could hold their own with many other of the tough folders listed here.