In recent years, a new application field of synthetic single crystal diamond is the wood processing industry, which is mainly because it has a high degree of wear resistance. pcd tools in wood processing mdf and chipboard already applied to machining, the current demand for aluminum oxide coating on the surface of highly wear-resistant laminated wooden flooring is growing, but the grinding this wood edge including pcd tools, including mention of special requirements, because wood wear layer will cause the edge passivation, leading to fragmentation of alumina wear layer. The tool must be trimmed so often until reground or replaced, this will inevitably lead to a long downtime. It is reported that at the time of the field application, performance is better than synthetic single crystal diamond pcd.