What tool is used for pulling wires and cables through a conduit?

Fish tape is a crucial tool used for pulling wires and cables through conduits due to its design and functionality. It consists of a long, flexible metal or fiberglass strip that can navigate through the bends and turns within a conduit, making it easier to pull cables through. The flexibility of fish tape allows it to be easily maneuvered through the conduit, while its durability lets it handle the friction and resistance encountered when navigating through tight spaces.

In contrast, other tools such as a wire puller primarily refer to devices designed to assist in pulling wires in a more general sense, often used for longer runs or heavier cables but not specifically designed for use within conduits. A cable spool is simply a storage device for organizing and managing cable without facilitating the pulling process. Lastly, a conduit bender is used for shaping conduits rather than for pulling wires through them. Thus, fish tape is the most effective tool specifically suited for the task of pulling wires and cables through conduits.