Hejian Hengji Bit Manufacture Co., Ltd.
Rotary Rock Bits
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IADC 114 steel tooth bit for soft formation -
IADC 115 steel tooth bit for soft formation -
IADC 116 steel tooth bit for soft formation
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IADC 117 steel tooth bit for clay formation -
IADC 124 steel tooth bit for clay formation -
IADC 125 steel tooth bit for clay formation high drillability -
IADC 126 steel tooth bit for clay formation high drillability -
IADC 127 steel tooth bit for mudstone formation high drillability -
IADC 134 steel tooth bit for mudstone formation high drillability -
IADC 135 steel tooth bit high drillability -
IADC 136 steel tooth bit for shale mudstone formation -
IADC 137 steel tooth bit for sand formation -
IADC 135 steel tooth bit soft to medium -
IADC 214 steel tooth bit medium soft shale -
IADC 216 steel tooth bit sandstone -
IADC 217 steel tooth bit thick and hard streaks -
IADC 244 steel tooth bit medium hard with hard streaks -
IADC 246 steel tooth bit medium hard with hard streaks -
IADC 324 steel tooth bit medium hard with hard streaks -
IADC 325 steel tooth bit medium hard with hard streaks