"sharpened prybar" is subjective. Some will say a 1/16" machete
can't be a sharpened prybar because it's too thin at the spine, it's thinness gaurentee's it'll act like it's sharp. Others will say that it's a sharpened prybar because it's primary grind is only 1/2" tall and it's 1/16" thick right behind the edge, thus wood has to be spread apart 1/16" very, very quickly - so it acts like a prybar in use.
In both definitions, with busse combat it varies depending on the model you choose. There are shbm's with very thin edges at 1/4" thick spine, and then theres the public defender with an incredibly thick edge at a 3/16" thick spine. Then you have the CABS with a thin spine and thing edge.
The thinnest edge I've seen was around .020" on the cabs, where the cgbj is between .060" and .070". The TTKZ starts with a .051" edge, but ends up at .250" in one inch. Thats a lot of thickness to be gained in such a short distance, wood has to spread apart a great deal very quickly. It is closer to a heavy axe grind than what most would think of when they think of knives. It depends on the model.
So what happens when you bring INFI to a super thin edge and really wail on it on a hard object (like frozen wood)?
http://www.bladeforums.com/forums/s...ozen-wood-vs-sarsquatch-The-wood-won-by-a-lot
that said, you could have gotten this out of a thicker edge, wailing on similarly hard woods (except not frozen):
Those are two examples of gross failure, likely due to residual stresses in the blade that are not the norm across all examples within their lines. But it shows on a macro level what is likely to happen on the micro edge level with steels that are less tough, though may have greater edge stability at thin cross sections. When they are pushed to their limit, they chip, fracture, shatter or otherwise fail without a lot of deformation. INFI will tend roll, mash and dent, and then finally tear away from the blade rather than shooting off it in a stress relieving chip.
INFI is a give and take, you get high levels of ever aspect of steel quality, but you don't get perfect scores in anything. There are steels with more stable edges at thin cross sections - but they will chip where INFI will bend. There are steels that have higher corrosion resistence, but are not as strong, etc. Cliff tended to bring his INFI edges down pretty thin, and seemed to like the results. He also tended to be pretty specific in how he used his knives, being aware, watching for, and noting knots and other potential hazards that could destroy thinned edges. If your willing to work with the potential damages, INFI can be brought down to a very thin edge, but it will tend to ripple and roll because thats what it's designed to do.
