Tool suggestion for PTFE

[magicniner]

A single flute or fast helix two flute cutter should work OK.
Peck drill to control swarf length, a ramped internal strategy for your 3.5 holes and outlines should generate chips not continuous swarf, the best path for your 10mm will depend on the strategies available in your CAM,
Regards,
Nick

[goldtop]

Thanks Nick. I was looking at Vectric Cut2d Desktop, but am not entirely sure if that's the CAM software you refer to, or just the design software. (The multi-process nature of CNC is still a bit confusing.)

[magicniner]

CAD - drawing, 2, 2.5 & 3D
CAM - creating tool paths to then convert to G-Code suitable for your machine.
With 2D you won't have too many strategies to choose from so I suspect it will not be too daunting.
I think Vectric is CAD/CAM and covers both.
Regards,
Nick