Quote Originally Posted by JimmyHAD View Post
It means a 45 degree angle relative to the hone with the blade flat on the hone. If it were not a smiler or a warped or worn spine it would be at 90 degrees. There is some individual variation on that among honers but that is what Lynn describes here in Lynn Abrams On Honing in the SRP Wiki.
Just to be clear: you mean with the spine flat on the hone as well?