YK3150 CNC Gear Hobbing Sprocket Cutter Cnc Gear Processing Equipment Gear hobbing machine is a machining process for cutting gears, splines, and worm gears on a hobbing machine, which is a special type of milling machine. The gear hobbing machine uses a rotating hob to cut teeth into the workpiece, creating gears of various sizes and shapes. It is widely used in the manufacture of gears for various applications such as automobiles, aerospace and other industrial machinery.