OD 2.4990mm, Concentricity 4.0um, ID 0.126~0.130mm, Length 10.5mm with CU/SUS Flange. High Hardness, Ceramic Standard Optical Ferrules with High Precision and Reliability, Excellent Thermal Stability, High Melting Point, and Long Lifetime. SC Multi-Mode PC(Chamfer) Shape with End Curve Radius Designed on Endface,