TM

Brush mower is a type of rotary mower. Typically these mowers attach to the back of a farm tractor using the three-point hitch and are driven via the Power take-off (PTO). 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 stump, it bounces backward and inward, and then inertia makes it go outwards again. 

The rotary blades are not sharpened in the same way as a conventional mower blade. They are usually quite dull so they whack through dense plant growth, whereas a sharp blade often gets stuck or slowed down. The blades are very heavy, up to an inch thick, so the momentum pulling out is stronger than the forces of the vegetation bouncing in. They are made of heat treated high carbon steel  that can withstand strikes with hard objects such as rocks and stones.

Lefa Machines Videos for your reference:
 
Light side Flail mower
https://www.youtube.com/watch?v=Bh73zRIYBpc
Middle Heavy Side Flail Mower
 https://www.youtube.com/watch?v=ZuWSCmiPows
Topper Mower
https://www.youtube.com/watch?v=VLUEyam_5DY
Light tiller :
 https://www.youtube.com/watch?v=jphaylxaKUg
EFG middle heavy tiller:
https://www.youtube.com/watch?v=O_tVXodWdN8
https://www.youtube.com/watch?v=O_tVXodWdN8
 
Potato digger
https://www.youtube.com/watch?v=ztPLsZ74PJY