Also called sickle bar. (in a mower, binder, or combine) a bar with triangular guards along which a knife or blade runs.
a bar holding the cutting tool in a boring machine or lathe.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use cutter bar in a sentence
It had open guard fingers, a knife made of triangular sections, reciprocating in the guard, and a cutter-bar on a hinged frame.Inventions in the Century | William Henry Doolittle
When the cutter-bar of the mower is tilted upward, the danger of smothering is reduced.Crops and Methods for Soil Improvement | Alva Agee
The knives are set at an angle to the axis of the cutter bar or cutter head.Modern Machine-Shop Practice, Volumes I and II | Joshua Rose
The cutter bar, suggestive of Hussey's, has triangular knives which vibrate over long fingers.
A second clipping will be required later, with cutter-bar tilted well upward.Crops and Methods for Soil Improvement | Alva Agee