This special miller was fitted with built-in rotary table in the form of a compound slide with travels of  200mm along the X axis of the table and 140 and 120 mm on the slide itself. Designed to help with radius milling the technique was to adjust the center of the radius, by using a zero stop under the spindle, then set the X axis to the radius size. The z-axis (on the head) was also adjustable, in 25mm steps, by loosing the milling-head beam and inserting measuring slip blocks under two rests, one on each column arm. The milling head had travel of 50mm.

1920s Precision bench miller using a modified lathe headstock of 90mm centre height from the Boley No. 4 precision plain-turning bench lathe. The machine was supplied with both screw and lever feed to the X and Y axis feeds.