CVDVale makes available to the market another innovative technique, diamond rods grown in columnar grains and set in a metal matrix. This combination forms a powerful tool for drilling any rock material.


The technology developed for diamond rods generation is HFCVD (Hot Filament Chemical Vapor Deposition). It consists in growing CVD diamond directly on a metal rod through hydrogen molecules and hydrocarbons dissociation to form a single polycrystalline Diamond Stone in the form of a rod. These diamond rods set in the drill bit, prevent diamond grains detachment as is the case with traditional drills (diamonds impregnated and / or drilled into the drill bit). It increases the life and cutting ability. Tests with prototypes showed this drill to offer:




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