When the button is pressed the sprocket is released from the lower casing. The upper casing can now be rotated and set at the required angle. When the button is released the pressure spring fixes the sprocket in the lower casing once more.
Possible pipe sizes:
Upper casing : lower casing :
S04-01: U → X= 19,45mm : O → X= 19,25mm
X = inner pipe size
Special feature: 8° offset
Standard colour: black. Special colours on request.