Coal mining bits are mainly used for underground mining and surface mining of coal, iron ore, copper, and other nonferrous metal ores. Aotian offers tungsten carbide tips/inserts for coal mining bits/picks. Our micro-grain carbide tips feature excellent wear and impact resistance and can be used to drill a wide range of conditions. We not only provide tips/inserts with standard specifications but also offer customization services. Our sales and engineers will provide the most cost-efficient solution for you.