Ceramic Inserts Vs Carbide Inserts Vs Cbn Inserts

What is the appropriate size for the inner hole of a ceramic ferrule

The ferrule hole bore must be slightly larger in diameter than the fiber to allow the fiber to be inserted into the hole. 5 mm stainless steel or ceramic (zirconia) fiber optic ferrules for constructing pigtailed fiber optic patch cables and assemblies. This variance in hole size would allow for minute variations in the manufactured optical fiber cladding diameters. Rosen offer various shapes of ceramic ferrules. 1mm, and the concentricity requirement is very high, which can only be achieved through the technology of ceramic powder injection molding.