I'm putting this out there for the folks that might not be familiar with how drag engraving looks. I tend to use the diamond drag more and more these days when I don't plan on filling the engraving work with Dykem or another contrast filler. The 90 degree tool provides very fine lines in stainless steel. The 120 degree tool is more visible from different angles, but I typically have to run heavier spring pressure and/or multiple passes to get depth without burrs. It's a good tool to have in your engraving arsenal.
https://youtu.be/XdswlEzv5Og