Tony Blanks wrote:
  > Since the "depth of cut" when used to scratch the surface of a piece with
such a plane is effectively the depth of the vee between the teeth, it seems to
me to make sense to grind these blades with a steeper bevel to better support
the teeth.

But the effective depth of the vee is a combination of the perpendicular depth
of the vee, AND THE BEVEL ANGLE.

It is obvious that grinding at 90 degrees would give no teeth at all, the rest
follows by extrapolation.

  BugBear