LINE10 Tools Drill Arbor Adapter Mandrel for Buffing and Grinding Wheels, 1/2-inch Diameter

Engineering Gadgets on Instagram: "For effective metal tube bending without damage, the best machine is a mandrel bender because it uses an internal support tool to prevent the tube from collapsing, wrinkling, or deforming. For large-radius bends where high precision is not required, a roll bender is another effective option."