High pressure DTH Bits diameter ranges from 76mm to 305mm, the high pressure DTH bits are suitable to:
DHD340A, DHD350R, DHD360, DHD380;
Cop32, Cop34, Cop44, Cop54, Cop64, Cop84;
Mission 40, Mission 50 , Mission 60, Mission80;
SD4, SD5, SD6, SD8;
TD40, QL50, QL60, QL80;
BR2, BR3.
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