5pcs 3D Printer M6 30/40/50mm MK8 Thermal Broken Throat Stainless Steel for 1.75mm and 3.00mm Jacket Steel with PTFE Pipe

Description: Material: stainless steel, PTFE Specification: Total length: 30 mm, 40 mm, 50 mm Thread: M6 Thread outer diameter: 6 mm Thread inner diameter: 4 mm (ones end), 2 mm (other end) Quantity: 5 pcs Package includes: 5 x nozzle throats Features: M6 screw part is made of high quality stainless steel, durables and long service life. There is a PTFE(Polytetrafluoroethylene) sleeve tube inside which ensures fluent passing through of filament. Widely useds and fit for any 3D printer extruder that uses 1.75mm filament. Great parts to built a 3D printer or useds as a replacement for old or broken part.