Review on 🪚 Highly Coarse Kutzall Extreme Rotor Saw Burr, 1/8-inch Shaft - Woodworking Dremel Attachment for Foredom, DeWalt, Milwaukee. Tungsten Carbide Abrasive, 3/4-inch (19mm) Diameter x 1/8-inch (3.1mm) Length, RSX-34-EC by John Pineda

Before use, reduce the speed of your rotary tool to the minimum setting, then slowly increase the speed. It's not balanced for high speeds. I put it in my tool, turned it on and it was set to max speed. It moved so fast and unbalanced that the shaft bent 90 degrees and appeared very dangerous. I straightened the wave and tried again to start at the lowest speed. They don't need high speeds to work well. Wear gloves. I wore cut resistant gloves because I was working with small pieces of wood in my hand and twice they prevented injury. The tool may catch and jump forward from time to time. In any case, wear protective equipment. If you need it at high speed, wear a full face mask as it's not designed for that. However, it worked great with wood and did exactly what I needed to cut material quickly. Just be careful with him.