The spindle and gears of the right angle milling head (90o milling head, angle head) are made of chrome molybdenum alloy steel and heat treated (carburization). Thus, the milling head is rigid and durable. Its quality is reliable. Such a milling head is suitable for conventional gantry milling machines, CNC gantry milling machines, single arm milling machines, special purpose machines and machining centers. Oh Young right angle milling heads provide customers with many choices depending on machine spindle speeds and the nature of the work. The heavy duty type right angle milling heads with heavy load bearings are suitable for heavy duty cutting at low speeds(0-800RPM), finish milling, drilling, boring at high speeds(800-1500RPM). And can mill five sides of the work piece if they work together with our boring-milling heads. We also welcome customer-made orders.