It has blades that are not rigidly attached to the drive like a lawnmower blade, but are on hinges so if the blade hits a rock or stumpit bounces backward and inward, and then centrifugal force makes it go outwards again. C and was later sold to Diamond Mowers Inc. This page was last edited on 4 Octoberat For more radical height adjustment the rear wheel can also be adjusted. The formal name for this type of implement is a rotary cutter or rotary moweralthough it differs from mowers in that it does not cut with a sharp blade, but rather severs with an intentionally very dull wedge-like blade. This adjusts the height of the front of mower.
Also these wings can be folded up into a vertical position to reduce width for transport on roadways.
The height of the cut on models attached on the three-point hitch is adjusted using the hitch control lever. Larger rotary cutters require more powerful tractors to effectively operate. From Wikipedia, the free encyclopedia. Typically the mowers in this category range from 3. These cutters also pose a thrown object hazard. Calculators  used to estimate the time required to mow different size areas with different size cutters are also available and can be used to help decide which brush hog is the best investment for different situations.