Simple Spanner for Bowden Extruder - Tevo Tarantula (and Other) 1.75mm² filaments

This is for my Tevo Tarantula Printer a replacement for the original bowden Extruder.
my PTFE tube Fitting is torn off today -> many Filament changes.

All U Need is 1x M4 Nut to "cut" the thread on the PTFE tube and to hold the Tube in the spanner

The Feature is, that the filament is Movin straight forward in to the PTFE tube without any trap or stuckin problems as with the Originalyellowmetalspanner