... a powdered metal bond. 1,The impregnated diamond bits are the most commonly useful bits in the mineral exploration industry, as ... maintained as a result of this action.5,Our impregnated bits are manufactured to give optimum penetration rates and bit ... formation to be drilled. SeriesSize AvailableQ series AQ, BQ, NQ, HQ, PQ/AQTK, BQTK, BQ3, NQ2, NQ3, NQTT, HQ3, HQTT, PQ3, PQTTT2 seriesT2 46, T2 56, ...