Features: Made of diamond and high speed steel, these cutting discs are extremely durable.This set includes many cutting discs in different diameters to suit your different needs.The teeth of the high-speed steel disc are extremely sharp and guaranteed for fast cutting.There are many cutting discs in one set for long lasting use.Comes with 5 mandels suitable for many electric spinning tools.Specifications: Main Material: Diamond, HSS cutting disc diameter: 0.9 inches (22 mm), 1.4 inches (25 mm), 1.3 inches (35 mm), 1.8 inches (44 mm); Weight: 2.8 oz (80 g); Package included: 10 x Diamond cutting discs (1.0 inches (25 mm), 10 x Resin cutting discs (32mm) 5 mm)