The advantages of tools for machining piston:* pcd mode milling tool: set of coarse and fine machining piston pin hole, circlip groove, and the hole hole low chamfer as one. A one-time change knife multiprogramming, efficiency high.* pcd end milling tool: coarse and fine processing piston top surface of the platform. One type tool handle structure, tool change rapidly, steel is strong, suitable for high margin, high speed, high feed cutting.* pcd slot tool: finish machining piston ring groove. A special hard alloy matrix and high wear resistance of pcd material, effectively overcome the process easily broken knife .* pcd ball milling tool: the rough finish machining piston top surface of the ball. The high wear resistance of pcd material can meet the machining allowance, excellent surface roughness and tool life.