Item Type: Straight Tooth Milling Cutter Material: High Speed Steel Specification: 100 x 12 Diameter: Approx. 100mm / 4.00in Tooth Width: Approx. 12mm / 0.47in Inner Diameter: Approx. 32mm / 1.26in Number of Teeth: 18 1、INTEGRAL MOLDING: Integral milling cutter without burrs which has smooth surface and installation 2、LARGER CUT OUT DESIGN: Larger cut out design greater reduction in resistance when opening holes 3、HIGH TEMPERATURE QUENCHING: High temperature quenching heat treatment strengthen the overall hardness more comfortable 4、FINE PUNCHING: This is a milling cutter with fine punching with smooth cutting and small errors 5、SMOOTH EDGES: This milling cutter has smooth edges finely crafted and not easy to scratch