Tube Bender Bend Mechanism Style Lever Bend Type Markings Calibrated Angle Markings from 0 to 180 Degrees Tubing Outside Diameter 1/4 in Compatible Tubing Material Annealed Copper Stainless Steel Steel Bend Angle - Minimum 90 Degrees Bend Angle - Maximum 180 Degrees Centerline Bend Radius 5/8 in for Copper Steel and Stainless Steel Application Tube Bending