1The highly polished cutting edge has an excellent finish and a longer service life, simple and practical. 2CNC milling cutter for aluminum, brass, copper and other non-ferrous metals, with high tolerance grinding ability. 3Firm router bit, fine workmanship, good performance. 5pcs of router bit, can meet your replacement needs. 4Made of good highspeed steel material, safe and ecofriendly, sturdy and wearresistant, convenient for use. 5Light weight and portable, easy to carry when going out. Suitable for many occasion, easy to install and use. Condition: 100% Brand New Item Type: Spiral Milling Cutter Material: High Speed Steel Coating: Titanium Plating Diameter: Approx. 4mm / 0.2in Shank Diameter: Approx. 4mm / 0.2in Blade Length: Approx. 17mm / 0.7in Total Length: Approx. 45mm / 1.8in Quantity: 5pcs 5 x Milling Cutter1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.