FIELD: machine engineering, possibly strengthening hard-alloy and diamond tools for drilling rocks. SUBSTANCE: method is realized due to irradiation of tool by doze power 0.15-0.18 R/s in reactor space of stopped industrial uranium-graphite reactor. EFFECT: enhanced efficiency of strengthening hard-alloy and diamond tools used for drilling wells in different types of rocks. 1 cl, 3 tbl, 2 ex
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