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12 1/4'' Iadc 617 TCI Hole Opener for foundation piling


Hole opener-welded

Name: Hole opener

IADC code:117,217,237,437,517,537, 617, 637, 737, etc

Sizes range: 8" to 62 " and customized according to drawings or requirements.

Pilot size:5 1/2”,6 1/2”,8 1/2”,12 1/4” ,17 1/2’’etc.

Bearing type:Sealed bearing.

Thread type:REG/IF/FH/Pulling eye etc.


There are full types of drill bits for your choosing in Hengji . Include TCI tricone bit,steel tooth tricone bit,single roller cone bit,pdc bit, hole opener,drag bit, etc.

Our bits are exported to global 58 countries. With good quality drill bits, we are the approved drill bits manufacturer and supplier for famous oil gas companies.As a good reputation OEM supplier, we are also a famous OEM manufacturer for famous companies.

ISO9001 & SGS Certified drill manufacturer, we are proud to bring you top-quality drill bits at good prices. Door to Door delivery service is available too. Send us a mail to get the best price now.


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Hejian Hengji Bit Manufacture Co.,LTD  is specialized in researching and production of rock drilling bits since 2012, mainly includes tricone bits, PDC bits, HDD hole opener, foundation single roller cutters, drag bits and related tools with advanced CNC machines and R&D team.


Junziguan industrial zone, hejian city, hebei province
+86-317 8114222
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