Coulter Disc for Moldboard Plows.
Disc is 16 3/4 inches in diameter.
The center hole is 2 1/8 inch.
The 6 mounting holes are 1 7/8 inch apart (measuring side by side) (center of hole to center of hole).
Coulter discs are also referred to as coulter blades.
These disc are new old stock from a dealership liquidation and will have some rust due to storage and age.
All coulter related parts