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I wonder how a scaled up powersharp chain would do? Something with a somewhat self sharpening design. Normal saw chain is a flat blade, which when blunted can't cut very well as it tries to push away from the wood. Something with small sharp teeth that have a way of wearing down to sharper areas...

Mine is the same 1800w as an abrasive, but I was wondering about tooth speed. The cutters would be heating from contact with wood, but their duty cyle against metal in a tree would be low, so they should hold up to heating from high speed metal cutting I would think. There is a method I'm still...

The right kind of carbide should work, especially in a full house (cutter per DL) design, and patience letting the saw do the work at whatever pace it wants. They make non abrasive metal chop saws that have a carbide tipped blade, looks just like a circular saw blade used for wood, but has a lot...

That's why I like skip chains for quicker sharpening, and keeping a few spares so you can just swap chains and keep going.