FIELD: manufacturing industry; applicable, mainly, in manufacture of diamond STRAIGHTENING tools. SUBSTANCE: hard alloy mixture used in said method of manufacture of diamond straightening tools includes composition of WC-Co-Cu powders and alcohol solution of orthophosphoric acid added in mixing, with the following ratio of components, wt.%: Cu, 10-40; H3PO4, 0.6-6; WC-Co, the balance. Obtained mixture is molded, pressed with formation of holes for installation of diamond needles oriented by cleavage plane. Produced articles are subjected to liquid phase sintering. EFFECT: higher strength and wear resistance of manufactured tools. 1 ex
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