I recently bought a new stitch groover. It wasn't all that impressive. The groove is larger than my old one and it doesn't cut all that well. Yeah I could sharpen it but decided I liked the one I bought some 50 years ago better. It also had these edge beveler tips that didn't work at all. The largest one is too small to be useful for anything I do so I modified one of those to make a beader tip. Then the edge guide was not the right length for that so I made a new guide out of a 1/8" stainless fill rod.
Now I had to try it out so I made a LH crossdraw holster with a 15 degree cant. I ran a double bead around it with a floral stamp where the beads changed direction. I'm pleased with it. It does the same thing my hand made double beader does but it is faster to use and I can make any number of beads by simply changing the guide and running another bead next to the previous one.
Here's the holster. It also has some character marks that showed up nicely after it was finished.
For comparison, here's a similar holster I made with my other double beader tool.