Answer: colter

AnswerCrossword Clue
COLTEREdged blade on a plow.
COLTERPlowing implement
COLTERPlow part
coltera blade on a plow, also COULTER
coltersharp blade or wheel attached to the beam of a plow, used to cut the ground in advance of the plowshare
coltera cutting tool (as a knife or sharp disc) that is attached to the beam of a plow, makes a vertical cut in the surface, and permits clean separation and effective covering of the soil and materials being turned under