You are expected to first use the installation instruction offered by Hoprio group. Probably it is a manual, a video, or a voice. When you encounter specific problems during the installation, a video could be sent to us to make sure that the problem is clear shown. We will offer guidance by video. In regard to big problems, senior engineers may be sent to solve it. Hoprio is an expert in manufacturing brushless die grinder. We provide the best in class products and exceptional services. Hoprio's brushless die grinder series contains multiple sub-products. The production process of Hoprio brushless motor controller begins with a rigorous inspection of all incoming raw materials. The materials have been tested for color, grade, and composition. Being equipped with professional and friendly service team, our company is proud. We build up a strong company culture of society charity while maintaining profitable growth in business. We regularly hold or take part in all kinds of donation projects or charity sells.
