Used section benders or used profile Benders are used to roll tubing, solid bars and other structural materials in profiles like arches, circles and spirals. A standard used section bender consists out of one top roll and two bottom rolls. Bending is done by feeding the material between the top roll and the two bottom rolls while moving the top roll between the two bottom rolls to create a circular shape. There are 3 types of used sections benders: manual, motorized or hydraulic.