In light of David Savage’s steel comments in another thread:
Noticed the Ashley Iles Round Back O1s in the latest Tools for Woodworking cat. Not to highlight them specifically but they triggered the thought.
I would throw it out for discussion, in that they (the AI RBs) are ground to 25 degrees with a suggested option of a micro bevel; would all the A1 tools, i.e. LN blades, chisels, Spruce et-al be quite so popular if they were ground to a lesser angle (like 25) and thus perhaps lead to even greater excess frangibility and edge chipping? All other things being equal. i.e. Rockwell etc.
Especially when used for a more delicate cut (without the micro bevel) as in paring where the blunt force and resistance of the higher degree would perhaps give way to the sharper and easier cut of an O1 and 25 degree tool?
I speak more to the chisels rather than planes. And more to fine chisel work as opposed to heavy firmer / mortise chisel work. Fine being that where the visible edge or the flat is of greater concern than the disgorging of meat.
My only significant and anecdotal experience in the area is in the plane area with a Hock O-1 vs a LN A-2 on a LN 4.5 smoother.
At the same plane settings /same frog / same angle, the LN A1 cuts very well for me, but the O1 is sweeter, seems sharper and the shaving less –for lack of a better description , “granular”. But this is a plane experience and thus a partially different beastie from the chisel question. (I have the two different blades for other reasons 🙂
As I consider the whole sharpening process a necessary evil but nonetheless odious, the quicker, the better. Sharpening is not woodworking. It’s not creative, it’s maintenance. The A-2s, longer to re-hone, O1s – lick and a promise on a “green” strop and back at it.
As I said -anecdotal and subjective.
Just throwing it out for thoughts.