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Kennametal

Innovative RMB-E and RHM-E Expandable Reamers from Kennametal

Kennametal introduces a new line of innovative, expandable, high performance reamers. RMB-E™ monobloc and RHM-E™ modular reamers are accurate, easy-to-use, expansion tools that are unlike any similar device available.

Innovative RMB-E and RHM-E Expandable Reamers from Kennametal
Both RMB-E and RHM-E expandable reamers operate with a rotation wrench that offers a predictable linear expansion of 2µ for every 30° turned. This means that no adjustment measurements are required and the tool does not need to be removed from the machine during the expansion process. The simple adjustment process also requires less training, as manual calibration is not necessary. Not only does this feature make expanding tool sizes easier and more manageable, it also dramatically reduces downtime when machining.

These expansion platforms are capable of a large expansion range of up to three times IT6 tolerance class. This capability increases tool life by up to 300%. With these tools, elastic expansion takes place within the steel body so that the tool is not damaged. The proprietary failsafe design has a runstop after two complete revolutions to further prevent tool damage through over-expansion. This expansion system also allows the user to reverse any expansion in case the tools has been expanded too much or if a smaller expansion is needed.

The RMB-E and RHM-E platforms are both offered with internal through coolant capabilities and are available in two geometries: straight fluted for machining blind holes and helical fluted for through holes. Kennametal is offering these products in two different grades. KC6305 is for multipurpose applications, and KC6005 is engineered especially for cast iron. Further cutting, such as cermets, PCD, or CBN materials will be available as custom solutions. All of these grades provide superior wear resistance and outstanding frictional properties for longer tool life and good surface quality. RHM-E reamers are available in diameters ranging from 14–42mm, while RMB-E diameters range from 14–20mm.
  Innovative RMB-E and RHM-E Expandable Reamers from Kennametal        
 Innovative RMB-E and RHM-E Expandable Reamers from Kennametal
  Innovative RMB-E and RHM-E Expandable Reamers from Kennametal

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