These computer numerically controlled (CNC) punch grinding machines are designed to grind non-round workpiece configurations form a solid blank workpiece billet. This type of grinding machine holds the pre-ground workpiece in a workhead chuck or collet clamping system located on the table of the machine.

The CNC control can be easily programmed to generate the desired shape. Once the program is completed, the machine will synchronize the rotation of the workpiece; the tables lateral movement and the in-feed of the grinding wheel in the most efficient sequence to remove the grind stock quickly and accurately.

Therefore, with this machine tool, very accurate punches and non-round dies and various other components that require a non-round configuration can be produced, from solid, very efficiently. Also, once the punches or non-round components are produced and used in the intended application, they can be re-ground and used for other smaller punch or non-round application, reducing overall workpiece costs and scrap rates. These machines usually are best utilized in small to large lot sizes.