Any carbide tipped V engraver should work.
All you need to do is set it to a depth that will produce the desired width=
 of cut.

Cheers,
Robert

----------------------------------------
> Date: Sun, 8 Mar 2015 12:21:45 +0200
> Subject: [EE] V shape 0.2-0.5mm PCB-CNC isolation tool
> From: piclist9@gmail.com
> To: piclist@mit.edu
>
> Good day all,
> Do you know any European seller with reasonable price of V-shape
> 0.2mm-0.5mm isolation milling bit?
>
> The one I need have here a picture:
> http://cirqoid.com/products/insulation-milling-v-tool
>
> thank you,
> Vasile
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