CNC milling head 5HP motor BT40 The milling machine Spindle is made of CHROME MOLYBEDENUM STEEL, tempering CNC milling head5HP motorBT40Spindle is made of CHROME MOLYBEDENUM STEEL, tempering and carburizing heat treated. Precision ground.Spindle assembled precision bearing that offers wide cutting range and high accuracy.Unique inversion type milling head, High precision, easy operation and brake ...