I have already purchased seven of these for the company, and the initial purchase set me back $4,200. When I worked with the guys from Central Asia for a year, I only had to replace the brushes once (it's difficult to track down the original ones). However, all of them died within half a year, and with these plows, you have to replace the brushes 4-5 times. After that, the anchor simply wears out after working for 1.5-2 years, and the cords interrupt this daily sawing with squeals. If not, it's