[HSS Circular Saw Blades]:The cut-off saw blades are high-speed steel and there are 5 kinds of outer diameters 22/25/32/35/45mm. They are suitable for cutting wood, plastic, PVC pipe, etc. [Diamond Cutting Wheels]:The cutting wheels are made of diamond. With high cutting efficiency, high durability, stable quality, etc., they are suitable for cutting gems, jade, brick, marble, glass, etc. [Resin Cutting Wheels]:With low heat generation and thin . They can be used to cut metal, metal, iron, aluminum, chassis modification, thin metal circuit board, and DIY production after connected with mandrels [Application]:The cutting wheel is compatible with electric drills, hanging grinders, electric grinders, etc. These cutting discs sets are Perfect for cutting, grooving and trimming. Widely used in carpentry and crafts. You can use a different cutting wheel to cut metal, gemstones, porcelain, tiles, ceramics, glass, plastic, wood, pipe, etc. Colour:Black + Silver Material:Metal + plastic Package Contents: 10 * resin cutting wheels(32mm) 2 * (1/8 inch /3mm) Mandrel 10 * diamond cutting wheels(25mm) 2 * (1/8 inch /3mm) Mandrel 5 * HSS Cutting Saw Blade Discs(22/25/32/35/45mm) 2 * (1/8 inch /3 mm) Mandrel Only the above package content, other products are not included. Note: Light 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.