1Adopts highquality tungsten steel material, safe and ecofriendly, wearresistant and not easy to stick, durable. 2Blade adopts mirror polishing process, high chip removal efficiency. Not easy to break after strong continuous processing. 3Sharp and precise cutter head, fast processing speed and high smoothness, improve work efficiency. 45pcs of router bits are available, suitable for wood carving, exquisite workmanship, good performance. 5Light weight and in small size, easy to carry when going out. Perfect for professional use, easy to install and use. Condition: 100% Brand New Item Type: Spiral Milling Cutter Material: Tungsten Steel Cutter Head: Approx. 1mm / 0.04in Shank Diameter: Approx. 3.175mm / 0.1in Blade Length: Approx. 3mm / 0.1in Total Length: Approx. 39mm / 1.5in Quantity: 5pcs Purpose: Wood carving 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.