Package contains: 1 x Kit hobbed bolt thread dragger
The kit includes the hobbed bolt M8x60 mm, and fastening nuts and washers.
The hobbed bolts are bolts suitable for the extruder of RespRap 3D printers. The toothed profile that characterizes them allows the filament with Ø 3.00 mm or Ø 1.75 mm, to be caught and pushed into the extruder. It is a handcrafted hobbed bolt, specially created and optimized for this purpose.