The drive wheels are cnc machined in steel that guarantees a mega grip on your filament. The housing is professionally 3D printed in nylon with the SLS technology. The ports on the sides gives an easy access for cleaning. Integrated Push-fit connectors for easy connecting of the bowden tube. Set-screws lets you tune the gripping force. Integrated thread bushings for a long lifetime. The high-torque geared stepper motor means fewer jams and more consistent extrusion. Pulling force ca 17 kg (1.75 mm ABS breaks at 13 kg) The Bondtech Extruder is also one of the easiest to assemble extruders available today with its innovative design. If you want to connect a bowden tube to the bottom of the extruder you will need the Direct to Bowden adapter that you will find below. This unit is assembled, tested and verified for optimal function when delivered. Cable with integrated quick connectors is included, lenght 75 cm with PC2510 connector.