It depends on the value of the sample. Generally, Hoprio group will send free blower dc motor sample but the freight is charged by you. We always work with the most reliable courier company to deliver samples at an affordable price. Considering the long-term relationship development, we generally send free sample to customers with our good faith. Hoprio is a best manufacturer and trader of electric angle die grinder. With many cases of success, we are the right business to partner with. Hoprio's angle grinder motor series contains multiple sub-products. Before delivery, Hoprio powerful brushless motor will be rigorously inspected for its safety parameters. Several important factors such as its insulations materials, electric leakage, plug safety, and overload will be tested with the help of advanced testing machines. The product has a self-protective function. When there is a malfunction, it can automatically diagnose and show what's wrong with itself. During the production, we will make sure production procedures to comply with relevant environmental regulations. We ensure not to produce noises, harmful smoke, odor, or light pollution that may harm people's health.
