>>77582>It's possible that I made that term up subconsciously, though I'm pretty sure I heard it before.>I was referring to number 5 on pic related. Basically thatThat's usually known as the primary or main bevel or grind as far as I know.
Red = bevel or grind
Yellow = grind line
Blue = plunge line
Like you say, getting them neat makes a hell of a difference to the overall look of the knife.