Review on YUFUTOL SC 5L4 Tungsten Carbide Burr by Jeremy Monroe

That's cool. I needed it and I don't even have a Dremel which is the shortest version. It had a hollow mount at the end of the tube that had to be drilled out a bit because the manufacturer's specs had changed. Basically, I had to cut out the inside of the cast metal cap by a hair's breadth so I could mount various parts that used to fit. Worked great on an electric drill at full speed. Nothing broke or bent from overheating, although I could see it if I wasn't careful. Used it for a few minutes and the super sharp textured serrated cutter removed a lot of metal. Nice piece, ideal for crushing things.