RIDGID (Emerson Japan) 310M tube bender

Lever type. The copper tube can be bent up to 180 °.
With a cushioned offset grip handle, a 90 ° starting angle, and a uniquely constructed plastic shoe, these features allow you to bend with a small amount of force.
Smooth bending of type K and L copper tubes. Ideal for bending copper pipes with a wall thickness of 2 mm or less.
Bending radius: The radius of the arc formed by the center line of the bent pipe is called the "bending radius".
* Cannot be used for bending stainless steel pipes.