1 each Zero Clearance throat plates for Dewalt 12" blade miter saws DWS779, DWS780, DWS782 and DHS780, DHS790.  Made out of PLA filament produced on a 3D Printer.   

After installing on saw run blade through throat plate to cut the slot in the plate. Zero clearance throat plates minimize tear out on cut lumber because

 it adds support at the cut area where the large opening on the factory throat plate does not.