DAH® Zero Holder

Offers integrated precision concentricity

The new adjustable holders provide maximum concentricity with REAMAX® TS   reamers from DIHART®, even when the machine or spindle conditions are less than favourable.

The modular REAMAX® TS   tooling system is a clearly structured range of reaming heads. It offers a high level of system modularity and precision.

The new adjustable holders now allow concentricity problems from the machine or spindle to be easily corrected. Micro-precision adjustment of the concentricity is achieved simply via four radially fitted screws. Even concentricity problems that occur during a tool change can be very easily corrected, while the process settings remain stable.

The adjustable holders run smoothly and without vibrating. They are now also available as standard components in "Plug 'n' Ream" kits and are suitable for fitting to a hydraulic expansion chuck or shrink chuck via a cylindrical shank.

For tool diameters of up to 35 millimetres, the adjustable holders mean that the balancing systems that are otherwise used can be dispensed with. With adjustable concentricity to an accuracy of < 3 μm, they meet the highest demands for precision and tool life.




  • for Ø-range 18.000 - 34.999 mm
  • Cylinder shank similar to DIN 1835
  • with internal coolant supply

Your PLUS:

  • Maximum concentricity
  • Modular tool system
  • Micro-precision adjustment
  • Simple operation
  • Stable manufacturing process
  • Smooth tool running
  • Kit system
  • "Plug 'n' Ream" for fitting in hydraulic expansion chuck or shrink chuck