What is available for 1/2", 3/4", and 1" RMC?

The correct answer is Hickey. A hickey is a tool used for bending rigid metal conduit (RMC) and is specifically designed to accommodate the sizes mentioned, namely 1/2", 3/4", and 1". They are used to create various bends in RMC to facilitate conduit runs, making them essential tools for electricians who work with conduits of those specific diameters.

Understanding the function of a hickey is vital for proper conduit installation and the management of electrical wiring systems. The hickey allows for smooth, accurate bends without compromising the integrity of the conduit, which is important for both installation quality and safety.

Other options do not match the functionality associated with the sizes of RMC mentioned. Conduit connectors, while related to RMC, are more about joining sections rather than bending. Wire nuts are used for making electrical connections but have no direct association with conduit sizes. Couplers are also used for joining conduits, but they do not relate to the bending or shaping of RMC.