I just thought I'd share this. I went to Home depot in search of a sanding tool to take the metal edge off my keggle. I can now run my fingers smoothly around the edge of the keggle without a single rough edge, sharp corner, or metal splinter.
I used a grinder and a dremel with both a grinding stone and a sanding stone to really take off the nasty pieces, but there were still some unsmooth potentially sharp spots here and there.
This stone weighs about half a pound and did an incredible job of smoothing out those remaining edges. It has the durability to really put some elbow grease behind and the weight to allow just dragging it over the surface with little effort. The 2 different grits worked great as well. I just thought I'd share for anyone else looking to take the edge off metal... or just about anything else. Great $7 buy.