Is the 562s cutting edge much thinner than the 566?
I get the following measurements with my cheap-o calipers...
0562 (factory edge)
- Blade stock: 0.153"
- Thickness behind the edge: 0.030"
- Thickness ~1/4" behind the edge: 0.061"
- Thickness ~1/2" behind the edge: 0.090"
0566 (sharpened, a little under 20 dps)
- Blade stock: 0.118"
- Thickness behind the edge: 0.026"
- Thickness ~1/4" behind the edge: 0.059"
- Thickness ~1/2" behind the edge: 0.085"
Blade stock was measured near the pivot (where it is at full thickness). Edge thickness measurements were at the end of the straight section of the blade (near the beginning of the belly) of each respective blade.
Those readings are probably within the margin of error (of my taking the measurements by hand, and of the calipers themselves), so I'd say the edge geometry is pretty comparable between the two. The thicker blade stock on the 0562 will mean that if you cut all the way down and through some rigid material, the blade will act like that much more like a wedge compared to the 0566.