Compound Tubing 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, Bend Angle - Minimum 90 Degrees , Bend Angle - Maximum 180 Degrees , Centerline Bend Radius 25 mm, Application Bending Copper or Thin Walled Tube from 1/4 to 3/8 in, Calibration Increments 15 Degrees , Compatible Tubing Shape Round, Features Not Applicable, Handle Type Ergonomic, Material Die Cast Aluminum