Bender,5/16 In Tubing, Bend Mechanism Style Lever, Tubing Outside Diameter 5/16 in, Bend Angle – Maximum 180 Degrees , Centerline Bend Radius 11/16 in, Application Tube Bending, Features Calibrated to Show Angle of Bend, Each Tool Bends One Size, No Scoring or Flattening of Tubing, Open-Side Type which Slips Over Tube at any Point, Wide Hook Grips Tubing Securely, Handle Type Lever Type