https://www.g-wei.com.cn/Creat....e-high-quality-brush
With the continuous development of technology, brushless motor technology has become the mainstream trend of the power tool industry. Compared with traditional brushed motors, brushless motors have higher efficiency, more stable performance and longer service life. In the field of electric screwdrivers, the application of brushless drive technology is becoming more and more extensive, and it has become an important part of high-quality brushless electric screwdriver.
https://www.g-wei.com.cn/Brush....less-Electric-Screwd

image