Hi Joe and All, never used efb gravers, but I'll give you my
preferences on gravers anyway. My job is stone setting and my
gravers hss swiss: onglette, flat, halfround, knive, whit different
sizes of each shape (over two dozens in total). But if I had to
chose just one I would keep a n.2 onglette for raising beads,
cleaning between beads and stones and brigth cutting. Allow me one
more and I'd go for a n.8 flat graver as a help whenever I wanted
wider bright cuts or very crisp corners.
However, I have seen differnt stone setters working with different
gravers achieving basically the same results. So unless it is a very
specific task that needs a very specific graver, personal
preferences developed through experience is what applies.