Great tools for detailed works with hard and delicate materials. Can be used with most multi-function tools, such as for drill, mini grinders and rotary tools. perfect for metalworking, paint prep, coating, corrosion removal and it works well on aluminum, brass, bronze, carbon steel, cast iron, stainless steel, and other metals. Assorted grits abrasive brush wheels to meet your application requirements. Fit for most die grinders and rotary tools, perfect grinding effect and convenient to polish,simple to use, safe and reliable. Grit:80;120;220;320;400;600;1000;2500 colour:color Material:Nylon + metal size:Shank Diameter:3MM Wheel Diameter:25MM Package Contents: 16 * Bristle Disc 4 * Rods Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.