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This Horizontal Directional Drilling tricone button bit is engineered to keep your rig drilling longer between trips. The IADC 537 cutting structure blends robust conical and chisel inserts with full-gauge protection, so the bit tracks straight through mixed formations—shale to sandstone—while defending the shoulder and shirttail from wash and wear. A sealed bearing system and balanced hydraulics sustain smooth torque under variable WOB and RPM, maintaining penetration without punishing the cones. In the hole, the bit feels predictable: fluid jets sweep cuttings clean, vibration stays low, and the toolface holds, even as you nudge a shallow curve. That steadiness shortens learning curves for crews and keeps project timelines intact—less time wrestling parameters, more time making hole.
Cutting structure for HDD reality
IADC 537 TCI layout targets soft–medium formations with abrasive interbeds for steady ROP and directional control.
Sealed reliability
Elastomer-sealed bearing with proven lubrication path helps resist heat and intrusion during extended pump cycles.
Hydraulics that clear and cool
Three replaceable jets focus cleaning at the cone nose and heel to limit regrind and stabilize torque.
Protection where bits actually fail
Gauge pads and shirttail hardfacing reduce body wear in sandy returns and high-solids mud systems.
API-consistent connection
API REG pin ensures fit-up with standard HDD subs and crossover options.
Operator-friendly window
Recommended 120–50 RPM and 0.45–1.0 kN/mm WOB range supports predictable steering and bit life on mixed runs.
HENGJI BIT SPEC | IADC CODE 537 | |
Diameter | 10 5/8''(269.9mm) | |
Tooth Type | TCI | |
Bearing Type | Elastomer sealed bearing | |
Circulation Type | Mud fluid | |
Thread Connection | 6 5/8 API REG PIN | |
Nozzle | three jet nozzles | |
Gauge Protection | Available | |
Shirttail Protection | Available | |
Operating Parameters | ||
RPM(r/min) | 120~50 | |
WOB(KN) | 0.45~1.0 | |
Formations | Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. | |
Application | water well drilling,oil &gas well drilling ,HDD,exploration,geothermal well drilling,drilling projects,etc | |
Size & IADC: 10 5/8 in, IADC 537 aligned to soft–medium formations.
Cutting Structure: TCI inserts with heel/inner-row geometry optimized for mixed strata.
Bearings & Seals: Sealed journal system with heat-resistant grease path.
Hydraulics: Triple jets; jetting advisory available for your mud weight/viscosity.
Connection: API REG pin; alternate subs available on request.
Operating Window: RPM/WOB guidance and “no simultaneous peak WOB & RPM” best practice.
Protection: Gauge and shirttail hardfacing options.
QA & Threads: API thread gauging before shipment; test certificates available.
Packaging & Logistics: Export-grade wooden crate; moisture protection; palletizable.
Customization: Engraved logo, nozzle sizes, premium carbide grades.
Lead Time & MOQ: MOQ 1; stocking patterns for standard specs; firm ETD at PO.
Service & Warranty: Technical bit selection and post-run review; limited warranty by contract.
More meters per trip — sealed bearings, balanced hydraulics, and full-gauge protection reduce nonproductive time and extend run length.
Directional confidence — IADC 537 insert geometry maintains toolface through abrasive stringers for straighter, smoother pilot holes.
Pre-job engineering — we preset jetting, nozzle sizes, and operating envelopes to your mud weight, pump capacity, and rig torque limits.
API-ready fit — API REG pin with quality-controlled threads minimizes on-site rework and connection risk.
Proven QA — every bit is gauged, torqued, pressure-tested, and preserved for shipment; certificates available on request.
Customization that matters — alternative carbide grades, gauge/shirttail hardfacing, serialization, and engraved branding to match fleet standards.
Logistics you can plan on — stocking for common specs, MOQ 1, export-grade crating, and firm ETD upon PO.
Post-run insight — dull grading and failure-mode analysis close the loop so the next run delivers higher ROP and longer life.
Lower total cost per meter — fewer trips, steadier torque, and cleaner returns drive schedule certainty and better as-builts.
What rigs and subs is this compatible with Works with
common HDD rigs and API REG-based subs; crossovers available on request.
Can I adjust nozzle sizes
Yes. We configure jets to your pump rate, mud density, and cooling needs.
How should I set parameters on mixed runs
Start mid-window (e.g., ~80 RPM; mid-range WOB), then tune by torque response and cuttings quality—avoid simultaneous peak WOB and RPM to protect bearings.
What formations suit IADC 537 best
Soft to medium with abrasive stringers: shale, limestone, sandstone, and similar mixed ground.
Do you support post-run analysis
Yes—send dull photos and run data. We’ll map failure modes and recommend geometry or jetting tweaks for the next shot.
This Horizontal Directional Drilling tricone button bit is engineered to keep your rig drilling longer between trips. The IADC 537 cutting structure blends robust conical and chisel inserts with full-gauge protection, so the bit tracks straight through mixed formations—shale to sandstone—while defending the shoulder and shirttail from wash and wear. A sealed bearing system and balanced hydraulics sustain smooth torque under variable WOB and RPM, maintaining penetration without punishing the cones. In the hole, the bit feels predictable: fluid jets sweep cuttings clean, vibration stays low, and the toolface holds, even as you nudge a shallow curve. That steadiness shortens learning curves for crews and keeps project timelines intact—less time wrestling parameters, more time making hole.
Cutting structure for HDD reality
IADC 537 TCI layout targets soft–medium formations with abrasive interbeds for steady ROP and directional control.
Sealed reliability
Elastomer-sealed bearing with proven lubrication path helps resist heat and intrusion during extended pump cycles.
Hydraulics that clear and cool
Three replaceable jets focus cleaning at the cone nose and heel to limit regrind and stabilize torque.
Protection where bits actually fail
Gauge pads and shirttail hardfacing reduce body wear in sandy returns and high-solids mud systems.
API-consistent connection
API REG pin ensures fit-up with standard HDD subs and crossover options.
Operator-friendly window
Recommended 120–50 RPM and 0.45–1.0 kN/mm WOB range supports predictable steering and bit life on mixed runs.
HENGJI BIT SPEC | IADC CODE 537 | |
Diameter | 10 5/8''(269.9mm) | |
Tooth Type | TCI | |
Bearing Type | Elastomer sealed bearing | |
Circulation Type | Mud fluid | |
Thread Connection | 6 5/8 API REG PIN | |
Nozzle | three jet nozzles | |
Gauge Protection | Available | |
Shirttail Protection | Available | |
Operating Parameters | ||
RPM(r/min) | 120~50 | |
WOB(KN) | 0.45~1.0 | |
Formations | Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. | |
Application | water well drilling,oil &gas well drilling ,HDD,exploration,geothermal well drilling,drilling projects,etc | |
Size & IADC: 10 5/8 in, IADC 537 aligned to soft–medium formations.
Cutting Structure: TCI inserts with heel/inner-row geometry optimized for mixed strata.
Bearings & Seals: Sealed journal system with heat-resistant grease path.
Hydraulics: Triple jets; jetting advisory available for your mud weight/viscosity.
Connection: API REG pin; alternate subs available on request.
Operating Window: RPM/WOB guidance and “no simultaneous peak WOB & RPM” best practice.
Protection: Gauge and shirttail hardfacing options.
QA & Threads: API thread gauging before shipment; test certificates available.
Packaging & Logistics: Export-grade wooden crate; moisture protection; palletizable.
Customization: Engraved logo, nozzle sizes, premium carbide grades.
Lead Time & MOQ: MOQ 1; stocking patterns for standard specs; firm ETD at PO.
Service & Warranty: Technical bit selection and post-run review; limited warranty by contract.
More meters per trip — sealed bearings, balanced hydraulics, and full-gauge protection reduce nonproductive time and extend run length.
Directional confidence — IADC 537 insert geometry maintains toolface through abrasive stringers for straighter, smoother pilot holes.
Pre-job engineering — we preset jetting, nozzle sizes, and operating envelopes to your mud weight, pump capacity, and rig torque limits.
API-ready fit — API REG pin with quality-controlled threads minimizes on-site rework and connection risk.
Proven QA — every bit is gauged, torqued, pressure-tested, and preserved for shipment; certificates available on request.
Customization that matters — alternative carbide grades, gauge/shirttail hardfacing, serialization, and engraved branding to match fleet standards.
Logistics you can plan on — stocking for common specs, MOQ 1, export-grade crating, and firm ETD upon PO.
Post-run insight — dull grading and failure-mode analysis close the loop so the next run delivers higher ROP and longer life.
Lower total cost per meter — fewer trips, steadier torque, and cleaner returns drive schedule certainty and better as-builts.
What rigs and subs is this compatible with Works with
common HDD rigs and API REG-based subs; crossovers available on request.
Can I adjust nozzle sizes
Yes. We configure jets to your pump rate, mud density, and cooling needs.
How should I set parameters on mixed runs
Start mid-window (e.g., ~80 RPM; mid-range WOB), then tune by torque response and cuttings quality—avoid simultaneous peak WOB and RPM to protect bearings.
What formations suit IADC 537 best
Soft to medium with abrasive stringers: shale, limestone, sandstone, and similar mixed ground.
Do you support post-run analysis
Yes—send dull photos and run data. We’ll map failure modes and recommend geometry or jetting tweaks for the next shot.
