30-Piece Color-Coded Disc Set for Full-Process Work - Includes 10 (aggressive grinding), 10 blue (medium cleaning for rust/adhesive), and 10 black (gentle finishing/deburring) to cover every stage from heavy stock removal to final refinement. Includes Mandrels and Quick-Change Pad for Fast Swapping - Comes with two 6mm shank rods and a universal adapter, enabling seamless transitions between electric and pneumatic rotary tools. Designed for Use on Metals, Ceramics, and Composites - Effective on steel, stainless steel, iron, and coated surfaces; removes oxidation, paint, scale, and residues while preserving base material integrity. Made from Nylon-Backed Ceramic Silicon Carbide - Engineered for high abrasion resistance and consistent cutting performance on hard materials without rapid wear or disintegration. Stable Performance at High Speeds up to 22,000 RPM - Maintains balanced rotation with minimal dust generation and reduced noise-ideal for detailed work on complex shapes., Weight: 1.2566348934 pounds, Manufacturer: Ehwisbe