Features:Size: 2x6x7x51mm, 2.5x6x8x52mm, 3x6x8x52mm, 4x6x11x55mm, 5x6x13x57mm, 6x6x13x57mmStrong hardness, toughnessType: Four Flute CNC End Milling Cutter Material: HSS and AluminiumMill Diameter: 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mmShank Diameter: 6mmFlute Length: 7mm, 8mm, 8mm, 11mm, 13mm, 13mmTotal Length: 51mm, 52mm, 52mm, 55mm, 57mm, 57mmPackage Included:6 x Milling Cutter HSS End Mills6 x Case