Wil-Rich 657 DCR - Video
The Wil-Rich 657 Disc Chisel is ideally suited for the first tillage pass in high residue conditions. Coulter disc on the 657 are offset from shanks to allow shank assemblies to properly till and bury crop residue. This split-the-middle design offsets the coulter discs 7-1/2 inches (19 cm) from the shanks to dislodge root balls and more effectively start the decomposition process. The combination of coulter disc in the front for sizing crop residue and careful shank placement around wheels minimizes plugging.