I think the BM 710HS is probably the best working folder you can buy as it has a combination of ergonomics, toughness, strength, reasonable size/weight, and features like the lock being ambidextrous, and the clip reversible.
It has G-10 handles, a 3.9" blade, and the much-touted Axis lock.
Having never tried the M2 steel, I really put this knife to the test after getting the knife, slicing up heaps of cardboard, using it at work on more cardboard, air/water lines, cutting belts off machinery, plastic wrap and heavy reinforced paper that we use, prying up handles on dock boards, using the swedge as a field-expedient flathead screwdriver, prying off old hose clamps, and a bunch of other stuff. The BT2 coating was removed in one day from opening several hundred bags of powdered slag wool fiber (which is very abrasive, and practically wore the edge off, too).
Deciding that the M2 might need a little help in the corrosion resistance department, and because I wanted to try out BodyCote's BC1 coating, I sent the blade to BodyCote, and had it coated with BC1 and a chromium underlayer.
When the knife came back, a whole new cycle of abuse started, since I wanted to check out this BC1 stuff. I started cutting sandpaper, batoning it through limbs and boards, beating it through PVC pipe, cutting the thin metal seals off railroad car doors, stuff like that.
When I got a couple of S30V knives, I wanted to compare them to some others for a variety of different things. Out of curiosity, I chopped (full power-from the shoulder) several knives into a coathanger to see how they compared with that localized impact. The 710s edge rolled a little more than the S30V, and had a slight nick. Nothing noticeable.
This knife has been intentionally abused, put through the wringer, and suffered no damage beyond a tiny nick from a coathanger, and a rounded tip from my hurry-up Sharpmaker technique. Well the BT2 got killed off, and the BC1 has taken quite the beating-it has held up marvelously, but you CAN hurt it
Downsides:
The Axis lock gets gunked up in there sometimes, and the knife occasionally has to be taken apart when mud and stuff gets in there and hardens.
One of the Axis springs broke after a little over a year of use. BM repaired it free of charge, in spite of my warranty voiding disassembly and modifications (coating). The lock still functioned, but I didn't trust it with just one spring left to fail. I don't like the fact that it broke, and it has kind of jaded me on the Axis, to be honest.
The BT2 coating wears pretty easily, but I had no problems with corrosion even after it was worn off the surface, and consider that purely cosmetic.
All in all, this is not my favorite knife, or even favorite folder, but it may be the best knife purchase I have ever made considering the amount of use/abuse I have gotten out of it vs the price<<[edit:talking about full-size knives, used strictly as knives, before someone jumps on that statement. My Vnox Recruit is far and away the best "bang for the buck" knife I own]
I highly recommend this knife
