I think what causes confusion is that beginners to model engineering who get sets of tooling, automatically recognise the normal tools, right hand cutting, boring, parting etc, and the 'speciality' ones tend to become forgotten about, thinking that they will very rarely need to be used.
Most turning tools can or do have a secondary purpose in life, and if they can be set up with the correct feed angles to the face being turned, and the tool is rigidly mounted, then it can be used for things other than it's original designated 'named' purpose.
Those of us 'in the know' recognise this fact, a lot of beginners don't.
Bogs