Tonsiki 5 Pieces 8mm Head Tungsten Carbide Rotary Burr Carving Bit Set with 1/4 Inch(6mm) Shank for Rotary Burring Drill Die Grinder

I probably didn't read very carefully when buying, but I had intended these to be for one of my dremel tools for learning to hand carve. It fits my small router, but not a dremel tool.Otherwise, iIve used them a little with the router (holding in my hand awkwardly), and they seem to work just fine.