Brass Coupling threaded M6x1. Couplings are used for ventilation and 3D printing is used to guide the filament in Bowden.
Use Teflon ring easily insert and remove the tube.
Child outer dimensions D = 4 mm internal / d = 2 mm)
These couplings are used within the copy E3D HotEndů and many other hotendech
Pneumatic connector PC4-M6 tube 4 mm * 2 mm
Straight fitting, M6 thread, Teflon ring, the outer hexagon 10 mm D
