PTFE Cutter for Copperhead C-E in Neptune 3 Pro/Plus/Max

I upgraded my Neptune 3 Pro with a Slice Engineering Copperhead C-E heatbreak and made this simple tool to cut the PTFE tube (⌀ 4 mm) at the right length (37.6 mm) and chamfer it at 120° angle. You will need a sharp scalpel to use it.

Appreciate your feedback!