4mm Tube Cutter PTFE

thingiverse

I found cutting ptfe with a sharp knife is simple but if its not 90 degree filament catches in a push fitting. This block always cuts perfectly using a 0.7mm blade (box knife) The block can also be used to hold tubing while drilling. I added slots at other angles 30, 45, 60 The block is of such a size so that it can be held safely Instructions I found the 4mm hole needs reaming out with a 4mm drill, the PTF tube is a close fit.