Colter

[kәultә]

(noun.) a sharp steel wedge that precedes the plow and cuts vertically through the soil.

Typist: Ralph--From WordNet

(n.) A knife or cutter, attached to the beam of a plow to cut the sward, in advance of the plowshare and moldboard.

Checker: Wade

n. the fore-iron of a plough.

Typed by Elroy