Item Type: Milling Cutter Material: High Speed Steel Specification: 100x10 Diameter: Approx. 100mm / 3.9in Tooth Width: Approx. 10mm / 0.4in Inner Diameter: Approx. 32mm / 1.3in Number of Teeth: 18 Package List 1 x Milling Cutter 1High Hardness: High temperature quenching heat treatment strengthens the overall hardness, making it more comfortable to use. 2Smooth Installation: The milling cutter is integrally formed without burrs, has smooth surfaces, smooth installation and easy installation. 3Large Cut Out Design: The large cut out design is adopted, which greatly reduces the resistance when opening the hole. 4Small Error: Using sophisticated production technology, it has fine punching, smooth cutting, small errors. 5Fine Workmanship: With fine workmanship, the edge of the milling cutter is smooth, not easy to scratch, and not easy to damage.