Specifications:Features:- Made from strong HSS high-speed-steel, durable and firm- Suitable for cutting hard materials like wood, plastic, laminate and aluminium,etc.Material: HSSColor: SliverMaximum RPM: 20,000Blade Diameter:- 22mm- 25mm- 32mm- 35mm- 44mm- 50mmPackage Weight : 57 G / 2.01 OuncesPackage Dimensions (L*W*H) : 210*115*2 MM / 8.27*4.53*0.08 InchesRetail Packaging: No, No PackingPackage Include:6 x Circular Saw Blade Set1 x Mandrel