Designed to fit onto the top of the compound slide (in place of the toolpost) the vertical slide had a single central T-slot down the centre line of its table - though no other way of attaching components so that they could be milled by a cutter held in a spindle-mounted 3-jaw chuck. Instead the unit appears to have intended for indexing work (e.g.. the manufacture of gears) with a dividing attachment fitted with a spindle that took standard headstock collets. A 48-notch indexing plate was provided as standard (numbered in increments of 6 on one side and 8 on the other). This plate, keyed to the shaft and held in place by a knurled nut, was quickly detachable - suggesting that others would have been available. The head was adjustable through 360 degrees so allowing any compound angle to be set. A micrometer dial was fitted to the feed screw but, unlike the fixed type used on the compound slide, this could be zeroed, a small grub-screw on the side of the collar allows it to be locked and unlocked.