This computer numerically controlled (CNC) grinding machine has all of the capabilities of a CNC cylindrical grinding machine, with the added feature of a Universal (Swivelable) Wheelhead. This type of wheelhead usually swivels 180º (either manually or automatically) and utilizes three separate wheel types. The cylindrical grinding wheel is located on the left hand side of the wheelhead and can be used as a straight infeed grind or adjusted for an angle (usually set at 30º to the workpiece) to grind a diameter and adjacent face, simultaneously. A facing wheel is located on the right hand side of the wheelhead and can be positioned or swung into an angle, such as 90º to the workpiece to face grind a flange surface or a workpiece shoulder. The third wheel on a universal grinding machine is the internal grinding wheel and is usually mounted on the back of the wheelhead and is swung into position by rotating the wheelhead 180º to the workpiece. This wheel is used to grind internal bores or diameters in a particular workpiece, thus giving you the ability to grind both external and internal workpiece features on a single machine, hence the name, "universal grinding machine".