I lucked out (I think!) when I was gifted with this little thing. It's a Rhinestone and Stud setter. Unfortunately it didn't come with any rhinestones OR studs (of any variety...two-legged or otherwise) so I'm not able to test it. It came with instructions, which is a good thing - and it tells me what types of 'bits' I need to get. Now just have to hope I can track them down somewhere. For now it looks pretty cool sitting on my worktable.