can anyone recommend what bit to use for engraving brass like in this video?

can anyone recommend what bit to use for engraving brass like in this video?
https://www.youtube.com/watch?v=KX_SFa_IE2s

Ask @jimmydiresta what bit he used?

yeh but he says he hates questions about his tools…

Looks like a 1/32 conical ball end mill, or a diamond coated cone burr.

Perfect, just needed the name to search it! Thanks