DescriptionThis item is a set of 50 pcs diamond grinding burrs which fit for or other brand rotary tools. With portable box, lighweight design, the kit is easy to carry and store. Comes with various shapes of burrs oto meet your using requirements. Great polishing effect, mainly used for diy polishing, engraving, cutting, buffing/ wood, metal mold grinding, etc.Feature- Color: As shown - Material: Metal - diameter: 3mm (Close to 1/8 ") - Largest head size:. Approx 16mm (Close to 5/8 ") - Smallest head size:. Approx 1mm (Close to 1/25 ") - Diamond sands: Grit 80 - Fit for or other brand rotary tools like lectric grinder, hanging grinder and table grinder. - Suitable for grinding the of stone, ceramics, glass, carbide, tile, marble, jewelry or rock. - Comes with various shapes of burrs oto meet your using requirements, such as sphere, cylinder head, round head cylinder, needle tip, bulle, ding sheet type, inverted ladder, flat plate, etc. - With portable plastic box, easy to store and carry.