In my estimation, the 650 and 655 would be more sturdy knives (in general) than the 124. The 120, 119 and 124 are fashioned from 3/16th stock. If I were to employ the 'batoning' method to split wood, I'd rather use a thicker blade, or even an axe just to be on the safe side. My 124 has long since been retired after rendering sterling service.