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Esteves Group - The global die company

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Diamond dies - Polycrystalline diamond wire dies (PCD dies)


Esteves Group is a manufacturer of diamond wire dies with polycrystalline diamond (PCD) blanks that can be used for ferrous and non-ferrous wire drawing applications. Sizes are available for drawing applications ranging from ultra-fine wire to large drawn rod. This size range includes, but is not limited to, 0.040 to 35 mm (.00157 - 1.378").

Like all products from Esteves Group, these products are manufactured with the highest quality and accuracy standards.

Polycrystalline diamonds, abbreviated as PCD, are man-made sintered diamonds and can be used for almost any type of wet or dry wire drawing application and are available in three main groups: unsupported and supported metal filled, and thermally stable.

For each group, several PCD blanks are available that match your wire surface finish needs as they are offered in diamond grain sizes ranging from 1 to 50 microns.

All PCD blanks contain randomly oriented diamond particles. The result is a perfectly round wear pattern for each die, ensuring that your wire remains round.

Let our experienced sales staff help you choose the most cost-effective or readily available diamond blank for your application or let us know if you specifically need a Sumitomo-Sumidia or Diamond Innovations-Compax PCD blank.


Key benefits of Esteves Group PCD diamond wire dies

Available for almost any type of wire drawing operation, from rod-size to fine-size
Can be used for wet and dry drawing applications
Predictable wire surface quality
Contain randomly oriented diamond crystals, making certain that wire remains round; even with significant wear the wire remains round
Blank dimensions are guaranteed, hence maximum recut dimensions can be predicted



Polycrystalline diamond blanks as a base material can be successfully applied in almost any wire drawing operation, from rod-size to intermediate and fine size wires.

The randomly oriented sintered diamond crystal structure makes these nib types stay round during use and its longevity is known to outperform both natural and synthetic single crystal diamond dies.

Typical application areas:
Copper wire
Aluminum wire
Tungsten wire
Molybdenum wire
Stainless steel wire
Coated steel wire
Special alloy and high performance alloy wire
Precious metal wire
Various other ferrous and non-ferrous metal wire types


Product use

Polycrystalline diamond can be chosen as a raw material for the following products from Esteves Group:

Wire drawing dies
Shaped wire drawing dies
Split dies
Bunching/Stranding dies
Extrusion tools (both tips and dies)
Compacting dies
Refurbishing/recutting drawing dies
Guide dies
Burnishing dies


Size range

Polycrystalline diamond wire dies (PCD dies) are part of Esteves Group’s diamond wire dies product portfolio. Typical ranges (both smaller and larger sizes are available on request):
0.007 to 2.00 mm (.00027 - .0787”) - natural diamond wire dies (ND dies)
0.010 to 2.05 mm (.00039 - .0807”) - synthetic single crystal diamond wire dies (SSCD dies)
0.040 to 35.0 mm (.00157 - 1.378”) - polycrystalline diamond wire dies (PCD dies)
0.127 to 76.2 mm (.005 - 3.000”) - tungsten carbide wire dies (T/C dies)


Technical support

Call our technical sales support if you wish to receive more information about our products or if you would like to receive a quote for your application. We will manufacture wire dies to standard specifications or customize our products to match your manufacturing needs.



All our manufacturing facilities manufacture new wire drawing dies.
All our manufacturing facilities refurbish (recut/rework) wire drawing dies.
Al our manufacturing facilities manufacture multi-wire die sets.
Our free eWizard handbook presents an overview of dies and their use in the wire and cable industry. We hope you will find this handbook useful in the course of your business activities.
Esteves Group also gives their customers a unique free software program that can be used to configure and visualize drawing dies. Drawing Die Wizard is a great tool to select the best and most cost effective blank for any wire drawing situation.


Esteves Group PCD dies - polycrystalline diamond drawing dies Download product leaflet (USA-only) Download product leaflet (metric)

Polycrystalline diamond (PCD)
Sintered diamond powder
Hardness 50 GPa
Thermal conductivity 500-600 W/mK
Transverse rupture strength 1,8 GPa

  Esteves Group Select PCD Blanks (metric)
  Esteves Group Select PCD Blanks (imperial)

How to order new dies

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