The front of the knee was of a pleasingly clean design - and completely enclosed against the ingress of swarf and dirt. The micrometer dials were positively locked by simple, through-acting, knurled-head screws; the very best method - if properly designed.

The quill and its housing were honed to a perfect fit and the spindle ran on precision "anti-friction" bearings - either ball or roller races. The quill feed was arranged by allowing the housing to screw itself in and out under the influence of a worm and wheel.