Hello nokia, I've re-read you original post a couple times now, and thought about it a bit before responding. I don't think that any pocket knife is going to hold up well in view of the use you are putting it to. It won't matter what is used, that kind of use if going to wear out a knife every year or two.
Thats not that bad a thing, and if you look back at jobs and history of really rough trades, knives were an expendable thing. In France, the Opinel is purchased by the box by farm workers and construction laborers. A friend of mine from the Vespa club is from France, and his family was visiting last year. They saw my Opinel, and asked how long I had been using them. I told them I had this Opinel for almost 10 years. The relitive joked I must not work too hard. In the scadinavian coutries the plain Mora knives are on job sites by the boxfull, and when one breaks or just wears down from being sharpend, the worker goes to the supply shed and gets another one. The great sodbuster comes from a knife design from eastern Europe, that was simple and cheap to build. The European penny knife was also around to be a "disposable" knife for the working class laborers. And in my own experiance in the army engineers, our supply room had boxes of TL-29's and the all steel scout knives. It was not uncommon to wear out a knife, or break it under hard use. It was planned for by the logistics sgt. He'd order a couple shovels, a few hammers, case of nails, new blades for the Skill saws, some tubes of cualking, and a box of TL-29's.
I think in the old days, most of our grandads looked at the pocket knife as something that had a finite life span. A tool to be used, and when used up, replaced. Only us knife knuts want a knife to last.
Come as a shock to knife lovers like us, most hard working men are not knife knuts.

They carry one because a man working for a living needs one, but he really doesn't care about it like we do. It's just like a cheap screwdriver or pliers to him. I've seen guys go over to the square wheel grinder and put on a fast rough edge on a knife in 20 seconds. The fact that they are grinding away a years worth of blade makes no difference to them at all. I worked with a guy who would work and grind his knife down to 2 worn down toothpicks in about a year, toss it in the trash can at the end of the day and stop by the store on the way home to buy another one. He always bought a cheap knife to destroy. Sometimes a gas station special. Definatly not a knife knut. Another guy I worked with made a rough use shop knife from a big bandsaw blade, and a cardboard and duct tape sheath to hold it. He'd sharpen it on the belt sander every morning. No knife knut there either.
Put the nice knife in your pocket, and save it for the weekend fishing trips with the children you will have someday. Teach them to whittle the perfect hot dog stick while sitting by the campfire. Eventually that knife will become a hierloom they will value. In the meantime, put a Stanley utility knife in your work outfit pocket. Change the blade when needed, and don't worry about it.:thumbup: