Tube Bender, Bend Mechanism Style Spring, Bend Type Markings Not Applicable, Tubing Outside Diameter 3/4 in, Compatible Tubing Material Aluminum, Copper, Bend Angle – Minimum 0 Degrees , Bend Angle – Maximum 180 Degrees , Centerline Bend Radius 3/4 in, Application Tube Bending, Compatible Tubing Shape Round, Features Spring Benders Slip Over Soft Copper and Aluminum Tubing During Bending to Help Prevent Tube Collapse, Material Steel, Overall Length 17 3/4 in, Standards GGG-B-191-a Type IV