a drive wheel having a planar upper face and a parallel planar lower face with a generally cylindrical exterior surface located between the upper and lower faces and with a centrally located square interior drive extending between the upper and lower faces, the exterior surface having a circumferential groove with a square cross sectional configuration midway between the upper and lower faces, and a threaded aperture with a set screw extending between the drive hole and the exterior surface at an elevation between the groove and the upper face;

a rectilinear block having a planar upper face and a parallel planar lower face with a rectilinear exterior surface formed of four rectangular faces including an operational face located between the upper and lower faces and with a centrally located cylindrical working surface in sliding contact with the drive wheel, the operational face having a generally centrally located rectangular opening extending there through, the operational face also having a circular entrance opening located offset from the rectangular opening and extending from an input location exterior of the block to an output location tangential of the wheel and the groove;

a die located in the rectangular opening with a square exit extending from an input location interior of the die to a round relief exit then to an output location radially extending from the wheel and the groove, the die having an interior surface constituting a continuation of the cylindrical working surface of the rectilinear block;

an elongated arcuate diverter having a square cross section secured to the die and extending into the recess between the entrance and exit openings with a leading abutment edge positioned immediately following the exit opening;

a backing plate removably positioned over the operational face of the rectilinear block with unthreaded apertures extending through the backing plate and aligned threaded apertures in the rectilinear block and with bolts positioned though the unthreaded apertures and coupled to the threaded apertures to hold the die in place during operation and use, the backing plate having an entrance port aligned with the entrance opening of the rectilinear block and an exit port aligned with the exit opening of the die;

a containment collar with a rectangular opening for receiving and supporting the rectilinear block and the backing plate, the containment collar having intake and extrusion holes for movement of the workpiece there through;

a drive shaft including a rectangular section adapted to extend into the drive hole of the drive wheel and a circular plate adapted to be positioned on a central extent of the rectilinear block with a hook extending upwardly from the circular plate to facilitate the raising and lowering of the drive wheel with respect to the rectilinear block;

a work table for receiving the rectilinear block and the backing plate and the containment collar, the work table having a central opening beneath the drive hole of the wheel; and

a motor secured to the work table beneath the central opening of the work table with an upstanding rectilinear drive block removably received within the drive hole of the drive wheel for rotating the wheel within the drive block to drive and pull a workpiece with an initial circular configuration into the square groove of the drive wheel in a path of travel to the abutment edge of the arcuate diverter then into the square exit which then opens into a round relief opening of the die and exterior of the system, it is at this point where the massive shear occurs, reducing the grain size and strengthening the material.