You know, I knew that but had forgotten. DuhThat's known as a jointer. As Stan says, it may help, but not like a coulter. You can probably find a coulter at a salvage yard, or at a swap meet.
Thanks StanIt will probably help but won't do the same job as a coulter would. JMHO Stan
Yes. I think it is mostly helpful with tall grass. If you want details, the book "Tractor Plowing at Its Best" in the resources is a good place to look (pages 8-10).Could be I suppose to help turn heavy trash over like corn stalks etc.