Features:Premium Material --- This Mini Circular Saw Blade Set is made from strong high speed steel for durability and longevity, high hardness gurantee fast and precision cutting. Diamond Saw Blade --- Perfet for cutting ceramic tiles, porcelain, glass, etc. Ideal for both professional contractors and DIY home usersAlloy Saw Blade --- With precision-ground circular saw teeth for smooth, accurate cuts. Ideal for cutting copper, aluminum, alloy and other medium hard thin metal material. HSS Hacksaw Blade --- Made of High Speed Steel, high wear and impact resistance, suitable for cutting wood plastic stone resin, etc.Wide Compatible --- 11.1mm inner bore diameter fit for many electric saw machines. Widely used on marble cutting machines, electric hand saws, sliding table saws, etc.Specifications:Material: High Speed SteelOuter Diameter: 54.8mm/2.15"Bore Diameter: 11.1mm/0.43"Mandrel Length: 60mm/2.36"Mandrel Shank Diameter: 6mm/0.23" Item Weight: 90g/3.2ozPackage Weight: 100g/3.5ozPackage Size: 20*16*2cm/7.9*6.3*0.8in Packing List:1 * Diamond Saw Blade1 * Alloy Saw Blade1 * HSS Hacksaw Blade1 * Mandrel