It's a deburring tool. The wings are there to save your hand from burrs
and sharp edges.

wrote in message
oups.com...
image posted to metalworking drop box,
(http://www.metalworking.com/dropbox/) file names "mystery tool with
handle" - text and jpg file


looks to me like it's for smoothing a bead or something - but there is
no
brand name or clue to be sure