I made a tangential tool holder for the lathe using my new mill.
Scruffy but it works. Couldn't upload photos from PC but a link to some photos is here .....
Angles are the usual 12 and 12 that are much discussed all over the internet and the point of the tool is sharpened at 30 degrees to make the diamond lozenge shape
Some nice lateral thinking on tangential toolholders in this thread