The feature characteristic of Esteves Group natural diamond dies is high performance. Thanks to careful selection of the raw material, (natural diamond stone), as well as a precise manufacturing process, Esteves Group ensures a well-defined and a perfectly consistent profile.

A particular specialty found within the Esteves Group is the production of diamond dies for fine and ultra-fine wire drawing (0.005mm to 0.07mm). Esteves Group has developed an innovative method for the production of the smallest diameters in order to offer a top-quality product and obtain a superior quality surface.

Esteves Group produces natural diamond dies from 0.005 to 2.00 mm (.00196-.0787") and also bigger by request.

Natural diamond (ND)
Carbon in a tetrahedral atomic crystallization lattice

Physical properties
Hardness 88-118 GPa
Thermal conductivity 800-2300 W/mK
Transverse rupture strength 2,0 GPa