Product We work closely with customers,to meet their drawing design requirement of special part. Including but not limited, Ejector pin/sleeve, punch, Guiding element, Cavity, Core, and insert plate…. Machining Accuracy we can reach:Size tolerance :±0.001mm,Axiality : ±0.002mm,Roundness :±0.0015mm, surface Roughness :Ra0.025μm,Straightness :±0.002mm.