DR Small is designed to raise productivity and cut costs by eliminating clocking in the interchangeable head each time it is exchanged, thereby reducing idle time. Such quick-change tooling has the added advantage that a manufacturer does not have to buy extra reamers to maintain production while worn tools are sent away to be reground.
Horn’s patented system is believed to be the only quick-change method of attaching a small reamer head to a shank, without the need for locking screws. The precision interface features keys and slots for rapid, secure attachment; repeatability of position being within 5 micron.