Features: Cutting wheels set include 30pcs mini resin cutting discs(24mm), 10pcs black resin cutting discs(32mm), 10pcs 545 diamond cutting wheels(22mm), 5pcs HSS cutting saw blades and 5pcs mandrels. Resin cutting wheels with low heat generation and thin cutting line, are applicable to electric drills, hanging grinders, electric grinders, etc. and great for cutting metal. Diamond cutting with high cutting efficiency, are suitable for cutting gem, jadestone, glass, etc. Ideal for DIY enthusiasts. HSS cutting saw blades with size of 22/25/32/35/44mm, are ideal for cutting wood, copper, plastic, and aluminum. The mandrels with 3mm/ 3.17mm shank fit for most rotary tools, air tools and so on. It is easy to install and replace. An indispensable tool for carving work. Specifications: HSS Cutting Saw Blades Size: 22/25/32/35/44mm Black Resin Cutting Discs Size: 32mm Mini Resin Cutting Discs Size: 24mm Diamond Cutting Wheels Size: 22mm Shank Diameter of Mandrels: 3.0mm(for resin cutting discs and diamond cutting wheels), 3.17mm(for HSS cutting saw blades) Packing List: 30 * Mini Resin Cutting Wheels 10 * Black Resin Cutting Wheels 10 * Diamond Cutting Wheels 5 * HSS Cutting Saw Blades 5 * Mandrels