Tube Bender Bend Mechanism Style Manual Bend Type Markings Calibrated Angle Markings from 0 to 180 Degrees Tubing Outside Diameter 5/16 in Compatible Tubing Material Aluminum Copper Bend Angle - Minimum 0 Degrees Bend Angle - Maximum 180 Degrees Centerline Bend Radius 11/16 in Application Aluminum Bend Soft Copper Brass Stainless Steel Help Us Improve Our Thin Wall Steel Calibration Increments 15 Degrees Compatible Tubing Shape Round Features Swivel Handles