Description Are you looking for professional quality products with reasonable prices? Are you looking for a sturdy, durable and reliable diamond burr bits that can complete multiple tasks? If so, our products will be your best choice! Our professional diamond burr bits will meet your needs. Features - Color: As shown. - Material: Emery. - Size: About 1.50X1.50X4.40cm/0.59X0.59X1.73inch. - It is made of high-quality and sturdy materials and has a long service life. - The package contains 20 practical diamond grinding heads, enough to meet your needs. - Can be used on stone, glass, metal, hardwood, tile, ceramics, marble, granite and other hard materials. - Used for sculpturing, dressing, precision grinding and internal grinding carbide. - Convenient to engrave, high working efficiency, perfect grinding effect.Package list: 20 x grinding bits