Features Adopting the high function of innovation and brushless feature. Durable and permanent life-time. Motor maintenance is unnecessary. Small and light weight, noiseless, streamlined appearance, high stability and easy to use. First creation of the most smallest and lightest brushless feature. First innovation of Forward/Reverse switch modes. Screws can be loosed easily just in a moment without switching the switches’ modes. Best choice for producing high precision products, such as watches, high precision hard-driver and etc.