HFD DHD down the hole bits is backed by the unique advantage that we use proprietary technology and patents to manufacture high-quality and cost-competitive mining tools through cooperation. The products are widely used in mining, infrastructure engineering, oil drilling, water wells and pile foundation engineering and other fields. After more than ten years of research, a distinctive feature of HFD drill bits is that it adopts the new state-of-the-art cemented carbide technology, which can reduce wear, extend service life and reduce interruptions. Through improved heat treatment and increased surface hardness, the valve body becomes stiffer, tougher and stronger, which means superior performance and longer service life. We can also provide the best solution for your mining, with higher efficiency and lower cost, or we can tailor it to your mine situation.
