General description These CSPARKV 10Pcs Dremel Diamond Discs are designed for precision cutting and are ideal for various materials including gemstone, jade, marble, concrete, brick, porcelain, ceramic, and epoxy. The discs feature fine diamond particles and air holes that help reduce heat and remove debris, making them perfect for creating slots and small spaces. Technical specifications Slice Diameter: Approx 30mm Mandrel Diameter: Approx 3mm Mandrel Length: Approx 35mm Compatibility and accessories Compatible with most rotary tools Includes 10 circular saw blades and 2 mandrels Usage Ideal for precision cutting of various materials Not recommended for cutting metal