Jet® Milling Machines, JTM-4VS 203 DRO & X & Y & Z Powerfeed Jet® JTM-4VS Milling Machines are ideal for cutting and shaping metal and other material. Motor is 3HP, 230/460V, 3Ph, Prewired 230V, Prewired 230V. Machines feature meehanite casting for long lasting durability. Chrome-plated motor shaft with lower bearing support. Large diameter quill is chromed. One-piece quill pinion and shaft. Precision bored and honed milling head. High-precision class 7 spindle bearings. Internally cooled spindle head. Heavy-duty splined motor drive. Three-stage power downfeed with automatic stop. Locks ...