Specially designed for model and experimental shops - and for instructional use in schools and colleges - the "Junior" was still made to Senior's exacting standard. The table was 20" x 4.75" with a longitudinal travel of 10", a cross travel of 4.5" and a vertical movement of 10".  Impressively, the Timken taper roller bearing spindle had 12 speeds from 60 to 4000 RPM, for the miller retained the heavy-duty lathe-like "backgear" assembly within the main column body fitted to the larger models. This valuable feature enabled it to mount slab milling cutters in the horizontal mode, yet run fast enough to make the best use of smaller end mills and slot drills when stub milling directly from the arbor socket.
The table had three rates of feed, the gearbox being driven directly from a V-belt extension on the main spindle motor. The machine stood 5 feet high ((1.5m) and the chip tray measured 29" x 22" (737 mm x 559 mm).
Later version of the "Junior" had the electric motor in the cabinet base and, although they retained the twelve spindle speeds, the range was compressed to 50 - 2800 RPM.