Horn Cutting Tools Quick-change tools eliminate clocking to raise productivity

Editor: Briggette Jaya

UK – Horn Cutting Tools' new, modular system, DR Small, is designed for changing small, indexable-insert reamers in a machine spindle quickly and to a high degree of repeatability.

DR Small tools raise productivity and cut costs by eliminating clocking in the interchangeable head.
DR Small tools raise productivity and cut costs by eliminating clocking in the interchangeable head.
(Source: Horn Cutting Tools)

The tools raise productivity and cut costs by eliminating clocking in the interchangeable head each time it is exchanged, thereby reducing idle times. 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 says.

According to the company, the patented system is the only quick-change method of attaching a small reamer head to a shank without the need for locking screws. The high-precision interface is said to feature keys and slots for rapid, secure attachment with position repeatability within 5 μm.

The flexibility in terms of shank systems and cutting edges allow for a wide variety of applications. Steel and carbide shanks are available in different versions for machining through holes or blind holes – with the main difference for those used in internal coolant supply. The indexable reamer inserts are held in place with a central clamping screw at the head end.

The system comprises four sizes with diameters from 7.6 mm to 13.1 mm and it is a cost-effective alternative to solid carbide reamers.

The DR Small tools also meet high-value parts-production requirements.

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