I alternate between Kershaw and Benchmade when it comes to assisted opening knives. With any sort of exotic steel, it's best to keep the edge sharp, rather than let it get dull and working to get it back into shape. I prefer diamond sharpeners, ceramic hones, and a leather strop.
All folding knives can benefit from a diamond-bearing oil called NanoLube for lubrication. The 10w oil carrier lets the sub-micron artificial diamond particles flow into the tiniest places. They cut away the tightest clearances, and work especially well on the blade pivot, and the pivots on pliers on multitools.
After the original lapping action is done, occasional use of NanoLube keeps things working smoothly. It flushes out the dirt and crud that accumulates, and the "larger" diamond particles embed in the metal surface, acting like tiny spacers that keep the parts a uniform distance apart.
I get even more use out of NanoLube on firearms. But I won't get started on that here.
I've also found out the hard way that screws and other fasteners tend to loosen over time. Now, before I put a knife into service, I go over all the threaded stuff and check for tightness. You'll need a set of SAE and metric hex wrenches, along with Torx. If it's a big fastener, I'll loosen it a bit, apply blue Loctite, and then tighten it back up. For tiny fasteners, I'll apply a drop of green Loctite and let it seep down the threads as I check the tightness.
The right tools help edged implements last longer and work better.
told you this would interest you
:)