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Troghohler
Chainsaw w/o a chain .  Instead,the end of the bar has a pair of metal wheels that have blades inserted that will carve the wood out. German made..hafta have it shipped in,snot available in America.

So what do you do with it? It doesn't cut through trees and branches like a normal chain saw. I've never had to wallow out a depression in a piece of wood.

It's for large scale carving and custom wood working. Not for cutting firewood, pruning, or other standard chainsaw jobs. It would make a short job of making log planting boxes, dug out canoes, etc.

That's how I found out about it.

Yea pretty impressive how it makes short work of digging out large logs.