HORN shows expertise in boring with the DR reaming tool system. The systems cover numerous diameter ranges.

With the DR high-performance reaming system, HORN offers
productive tool systems for reaming from diameters of 7.6 mm
to 200.2 mm. In addition to numerous cutting edge geometries
adapted to the application, the user can select the optimum
combination of substrate, geometry and coating for almost any
machining application.

Reaming with HORN-tools

Product news


The newly developed DR-Large reaming system from Paul Horn GmbH demonstrates the company’s expertise in machining of bores.

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Our Tools

System DR-Small

With the DR-Small system, HORN has the world's smallest quick-change reaming system in its patented range. The spread of diameters in the four system sizes extends from 7.6 mm to 13.1 mm.

System DR

HORN offers the DR system in diameters from 12 mm to 140 mm. The secure fastening and positioning of the 4.3 and 5.3 mm wide carbide or cermet reaming inserts on the respective base ensures a concentricity-related changeover accuracy ≤ 3 µm.

System DR-Large

The tool offers easy handling and high precision thanks to the proven technology of the DR tool family. The versatile and powerful interchangeable reaming system covers the bore diameter range from 140 mm to 200.2 mm.

Catalogue drilling and reaming