Tube bender tools are used to permanently form or shape metal pipes and tubes into specific angles and curves, typically with diameters ranging from \(1/4\) to \(3/8\) inches for hand-operated tools. They work by using dies or shoes to apply pressure, creating precise bends—up to \(180^{\circ }\)—without kinking, buckling, or damaging the material, often for HVAC, electrical conduit, and plumbing applications.