Reel jacks are mechanical devices used to lift and support heavy loads, often in industrial settings. They typically consist of a sturdy frame, a lifting mechanism, and a reel or drum that holds a cable or chain. When operated, the reel jack can raise or lower objects, making it easier to move equipment or materials. These tools are commonly used in conjunction with cranes and hoists to enhance lifting capabilities. Reel jacks are essential for tasks such as maintenance, construction, and shipping, where safe and efficient lifting is crucial for productivity and worker safety.