Various grits available for different applications: white 120# for soft metals like aluminum, yellow 80# and green 50# for hard metals like steel. Time-saving design with flexible bristles that require less force than wire brushes, providing efficient cleaning and maintaining abrasive properties throughout the disc's life. Versatile tools for deburring, cleaning, removing stubborn coatings, blending, and finishing effectively. Widely compatible with most multi-functional tools, including electric drills, rotary tools, and mini grinders, operating at speeds of 15000 - 25000 rpm. These abrasive bristle discs are designed to meet various cleaning and finishing needs across different materials. The flexible bristles a large contact area for efficient cleaning while saving time and effort. Ideal for both soft and hard metals, these discs are perfect for professionals and DIY enthusiasts alike, providing reliable performance and durability. Color:As Shown Material:+Metal Package Contents: 12 * 2 Inch Bristle Disc Only the above package content, other products are not included. Note: Light reflection 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.