YOU SAVE $56.00 over the price of these items purchased individually. The 2000-series mill base has been extended an additional 2" over the Model 5400/5410, extending the Y-axis travel to 7.0" (178mm). This was done to accommodate the pivoting mechanisms and to take advantage of the increased arm movements. Like the deluxe Model 5400/5410 mills, all handwheels are resettable to zero at any time.