Tube Bender Bend Mechanism Style Lever Bend Type Markings Left Offset Right Tubing Outside Diameter 1/4 in 5/16 in 3/8 in Compatible Tubing Material Aluminum Copper Stainless Steel Bend Angle - Minimum 0 Degrees Bend Angle - Maximum 180 Degrees Centerline Bend Radius 1 in Application Tube Bending Calibration Increments 45 Degrees