This is the STIHL FSA 400 trimmer/ brush cutter and it’s the biggest most powerful cordless brush cutter they make. During university I worked as a brush cutter in bush camps in Northern Alberta and had one of the gas powered brush cutter saws. We lived in tents and worked long hours and all day long would cut down all brush and trees that were competing with the trees that had been planted they year before to give them the best chance to grow. I wanted to get my hands on this one of these new b