3m Espe Relyx Fiber Post Drills The 3M ESPE RelyX Fiber Post Drills are designed to prepare the root canal for the insertion of RelyX Fiber Posts. These drills are an essential component of the RelyX Fiber Post system, which is engineered to provide strong and long-lasting restorations.The drills are available in four different sizes, color-coded to ensure accurate selection and prevent errors. There is also a universal reamer size for additional shaping as needed. The elasticity of the RelyX Fiber Posts is similar to that of natural human teeth, helping to distribute forces evenly and minimize the risk of root fractures. These specialized drills allow dental professionals to precisely widen and shape the root canal to the appropriate dimensions for secure placement of the RelyX Fiber Posts. This systematic approach helps achieve excellent clinical results and long-term success of the final restoration. The RelyX Fiber Post system is designed to simplify the process of post-and-core buildups for dentists. Indication: Preparation of root canals for insertion of RelyX Fiber Posts, ensuring secure and durable dental restorations.