Tube Bender Bend Mechanism Style Ratchet-Driven Bend Type Markings Calibrated Angle Markings from 0 to 180 Degrees Tubing Outside Diameter 3/4 in Compatible Tubing Material Hard Copper Heavy-Wall Steel Stainless Steel Bend Angle - Minimum 0 Degrees Bend Angle - Maximum 180 Degrees Centerline Bend Radius 3 3/4 in for Copper Steel 3 3/4 in for Stainless Steel Application Tube Bending Calibration Increments 15 Degrees