Here is a tip for rounding wire from @maxbennettjewellery - “Busch’s twincut concave burrs, one of my absolute favourites. These little guys can round up the ends of wires like cup burrs, but they also cut/shorten the wire with ease, so handy if cutting down the length is needed. Very satisfying to use as well.😊In the third pic you can see how they differ from the traditional cup burrs. I personally prefer the finish these give over the cup burrs.” Also curious about how you marked your burs to differentiate sizing 😏 Thank you so much for emailing me this tip! I appreciate it!! #jewelrymakingtips #jewelrymakingtools