Specifications: TiSiN coating can directly carry out rough machining to fine machining of heat-treated materials below 55 degree, reducing the number of tool changes, improving the efficiency of the machine tool, and saving manufacturing time. Using 0.6UM micro-grain tungsten steel base material, it has higher wear resistance and strength, which is an exclusive milling cutter for high-strength high-speed cutting applications. It is fully ground and durable, which can effectively ensure the cutting sharpness for the service life of the milling cutter. The universal chamfered round shank is easy to use, has good compatibility, and can enhance the vibration resistance and cutting speed of the milling cutter. Item Name: Milling Cutter Material: Tungsten Steel Feature: Smooth, High Efficiency, Wide Application, Hardware Tool Size Chart: 1mm x 50 x 4D: Blade Length: 3mm/0.12", Shank Diameter: 4mm/0.16", Blade Diameter: 1mm/0.04", Total Length: 50mm/1.97" (Approx.) 1.5mm x 50 x 4D: Blade Length: 4mm/0.16", Shank Diameter: 4mm/0.16", Blade Diameter: 1.5mm/0.06", Total Length: 50mm/1.97" (Approx.) 2mm x 50 x 4D: Blade Length: 6mm/0.24", Shank Diameter: 4mm/0.16", Blade Diameter: 2mm/0.08", Total Length: 50mm/1.97" (Approx.) 2.5mm x 50 x 4D: Blade Length: 7mm/0.28", Shank Diameter: 4mm/0.16", Blade Diameter: 2.5mm/0.10", Total Length: 50mm/1.97" (Approx.) 3mm x 50 x 4D: Blade Length: 8mm/0.31", Shank Diameter: 4mm/0.16", Blade Diameter: 3mm/0.12", Total Length: 50mm/1.97" (Approx.) 3.5mm x 50 x 4D: Blade Length: 8mm/0.31", Shank Diameter: 4mm/0.16", Blade Diameter: 3.5mm/0.14", Total Length: 50mm/1.97" (Approx.) 4mm x 50 x 4D: Blade Length: 10mm/0.39", Shank Diameter: 4mm/0.16", Blade Diameter: 4mm/0.16", Total Length: 50mm/1.97" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Milling Cutter