Smooth Coulter Disk for Moldboard Plows.
Disc is 17-1/2" inches in diameter.
The center hole is 1-15/16" inch.
The 6 mounting holes are 1-1/2" inch apart (measuring side by side) (center of hole to center of hole).
Coulter discs are also referred to as coulter blades.
These disk are new old stock from a dealership liquidation and will have some rust due to storage and age.
Stock location P118.
All coulter related parts