Bevel Edge or German
Edge. The inside is
always flat. The #1 shear.
Modified Convex -
Semi-convex - K Blade -
Hollow Ground Bevel
Usually has a ride line on
the inside edge. This one
is about 40 degrees.
Could be the #2 or #4
shear.
Convex Hollow Ground
Japanese Edge
ALWAYS has a ride line
on the inside that should
always be smoothed.
This one has about a 50
degree edge and if done
very smooth inside and
out would be good for #3
shear.
The HOLLOW GROUND is the curve
shown above.