The 8mm REX™ Shaft w/ E-Clip (Stainless Steel, 216mm Length) features a dual-profile design combining an 8mm round and a 7mm hex profile, allowing compatibility with 8mm round bore bearings and providing a secure drive. Threaded ends facilitate its use as standoffs or dead axles, while the E-clip acts as an end-stop. The shaft's design ensures ease of length selection and adaptability for various project requirements.