High-speed Vertical Head; this used a two-speed, 1400/2800 r.p.m. 0.75 h.p. motor that provided eight speeds of 500, 700, 1000, 1400, 2000, 3000, 4000 and 6000 r.p.m. The spindle, fitted with an ISO-30-M12 or ISO-30-1/2" nose, was able to take a collet chuck, had 3.125 inches of travel and was fitted with both a quick-action lever and fine-feed handwheel.

The Simple High-speed Vertical Head had a 0.5 h.p. 2,800 r.p.m. motor that gave four V-belt driven speeds of 1000, 2000, 4000 and 6000 r.p.m. and a quill moved by a quick-action lever through a rather short 2.375 inches (60 mm) of travel.

A more complex dividing head was also available - the Universal Inclinable. With the same range of nose fittings as the standard head, this 4-inch (100 mm) centre height version had a body that could be rotated from horizontal to vertical. A 24-hole indexing plate was fitted as part of the standard specification, as was a set of three indexing plates.

Power-feed unit to provided a spiral indexing facility (used in conjunction with the Universal Milling Head). This employed a train of gears contained in a cast box with machined-in T-slots with a drive taken from the table's horizontal feed shaft - the gear set comprising wheels of: 24, 24, 28, 32, 40, 44, 48, 56, 64, 72, 86 and 100t.

A very much more complex and versatile dividing apparatus was thee Co-ordinate Rotary Table: this beautifully-made and heavy unit (176 lbs/80 kg) consisted of a rotary table, with worm drive plus and indexing-plate facility, mounted on an angle plate for direct fixing to the F4's vertical table. Integral with the rotary element was a compound slide rest that carried a 11.75" x  8.625" (300 x 220 mm) table with three T-slots. X and Y feeds were both 4.75" (120 mm) a travel that, although limited, was sufficient to allow the precise rectangular and polar positioning of small workpieces in relation to the spindle axis. Also shown is the Centering microscope.