High Quality: Made of premium silicon carbide and nylon with an open-web design, these 2 inch sanding discs deliver efficient, wear-resistant grinding with low noise, minimal dust, and uniform abrasion, while protecting the original surface 3 Hardness Options: Black (soft) for light rust removal and surface conditioning; blue (medium) for paint stripping and cleaning on soft metals and non-metal surfaces; purple (hard) for heavy-duty paint and rust removal on tough metals Cleaning & Stripping: Effectively grinds welds, deburrs oil pipes, polishes ceramics, strips paint, and removes rust and oxidation. The compact 2-inch size easily reaches corners, curves, and tight spots for detailed surface preparation Wet & Dry Use: Wet use helps reduce heat and dust while extending disc life. Dry use allows for quick material removal. These die grinder sanding discs are suitable for metal, plastic, fiberglass, wood, stone, concrete, and more. Quick Change Attachment: Featuring a roll lock design and 1/4-inch round and hex shanks, these die grinder discs allow fast, secure installation on die grinders, angle grinders, and other rotary tools. Max speed: 23,000 RPM This 2-inch Paint Stripping Disc Set is a versatile solution for grinding, polishing, and surface preparation. Featuring 30 premium silicon carbide and nylon discs in three colors (blue, black, purple), it offers high-speed performance (up to 23,000 RPM) and seamless tool compatibility with 1/4-inch round and hex shanks. Perfect for tasks like rust removal, paint stripping, weld grinding, and more, it works on metal, plastic, wood, and even wet surfaces, providing efficient, low-dust, and damage-free results