Great weed killer and rust removal tool. I have a lot of weeds on the sidewalk and I have to reach out several times a year. So far, manual attempts have been laborious and time-consuming, and the propane burner has not achieved long-term success. The brush used on my brush cutter has completed the work in a very energy-efficient manner in a very short time, and I tried to follow It shows that using it to clean up the annoying rust on the corner iron plates, as expected, it achieved its goal.