Teflon (PTFE) Tefzel (ETFE) stripping?

[wilfred]

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[Kjelt]

if it is manual stripping and you are sure that it is exactly AWG28 this would be a good wire stripper but even these will from time to time nick the inner wire:
http://uk.farnell.com/ck-tools/t3756-30/wire-stripper-0-30mm/dp/146420
Also read this electrical wire stripper topic, however not within your price it still has some valuable manual stripper tool info in it:
https://www.eevblog.com/forum/beginners/thermal-wire-strippers-are-they-good/msg320220/#msg320220

[amyk]

Thermal decomposition of fluoropolymers produces some rather nasty chemicals, including hydrofluoric acid.

[F4CPY]

I often use #28 to #30 AWG wire (strain gages soldering) and mechanical strippers have never done the best job as a heat stripper (for PTFE insulating), but using an aspiration hood (don't know the right term in english!). I heat the strips below 300°C (melting point about 327°c) and only make a gentle mark on the vire.
Some studies (look at wikipedia) said that PTFE starts to decompose near 200°C, so don't breathe the smoke!
If someone have a good trick...

[robrenz]

These look like the ducks guts for what  you are after.  Yeah a little more than what you want to pay but probably your best bet.

Edit: Same tool lower price. picture says Clauss on the handle so it should be same stripper