I have a couple of questions about the 3.25 & 4.25 Diamondbacks. Do they have full-length tangs, and, if so, might you have any photos of the Diamondbacks' steel before the handle is added? I could melt the handle off of mine to find out, but that would be neglectful, and I'd rather not have to pay to x-ray them. 
Maybe all Buck fixed-bladed knives have full-length tangs? That would simplify things.
GeoThorn
P.S. Does anyone know if the Buck Fieldmate, model 639, has a full-length tang? The Buck Reps might know that answer but someone may have accidentally melted their handle and also, unfortunately, know the answer.

Maybe all Buck fixed-bladed knives have full-length tangs? That would simplify things.
GeoThorn
P.S. Does anyone know if the Buck Fieldmate, model 639, has a full-length tang? The Buck Reps might know that answer but someone may have accidentally melted their handle and also, unfortunately, know the answer.