The evs-1440b is engineered to maximize your shop's output. the d1 4 spindle is precision ground for accuracy and supported by class 7 tapered roller bearings capable of a run out maximum of .0004". the 2 speed gearbox allows operators to easily work at low speeds from 40 to 365 rpm and at high speeds from 220 to 2,000 rpms. v-way bed design is induction hardened and ground. splined, not keyed, shafts are utilized. independent leadscrew and feed rod. adjustable gibs are incorporated in the carriage and slideways.