The 45°+ Reverse Bevel Opening is created by cutting into the thicker matboard surface with the blade angled at 45°, thereby slanting the bevel under the matboard surface.
The matboard core is not visible from the front.
The Bevel Type refers to the angle at which the blade cuts the surface of the matboard when it deviates from the 90° right angle cut.
The Bevel Type determines the initial blade plunge position.
The Blade Depth must be above 16 in order for the CMC to prompt for the 45°+ Cartridge.
Select Reverse Bevel or Reverse Bevel-Front of Mat from the Current Bevel Type dropdown control to edit this configuration.