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6 1/2" (165 mm) Tricone water well drill bit engineered for consistent ROP in soft–medium formations.
Delivers clean returns, stable torque, and fewer bit trips—lowering cost per meter.
TCI cutting structure + sealed bearings + three-jet hydraulics give predictable footage in mixed ground.
Compatible accessories available: breaker for tricone bit, Drilling Rod Bit, dig reamer drill bit to complete the run from pilot to ream.
537
1
tianjin ,shanghai
water well,oil well,HDD,exploration,etc
100% New
| Quantity: | |
|---|---|
On bottom, this well drill bit settles quickly and runs with a low, even hum—no sudden chatter when the formation changes. The TCI inserts cut and crush in one motion, so the bit stays engaged through shale bands without spiking torque. Three calibrated jets lift fines away from the cones, keeping the cutting structure sharp and the returns visibly cleaner at the shakers. A sealed bearing stack blocks mud intrusion and manages heat, so your RPM stays in the sweet spot for longer footage. The result is fewer unplanned trips, straighter pilots, and a steadier pump schedule. For contractors measured on meters per shift and rig hours per job, this water well drill bit is a predictable way to compress timelines and tighten unit costs.
Formation-matched IADC 537: Tuned for soft–medium formations where penetration speed and durability must balance across variable layers.
Sealed-bearing reliability: Rubber-sealed/journal architecture resists fines, extends cone life, and reduces bearing heat in mud rotary.
Hydraulic cleaning (3 jets): Sweeps the bit face to minimize regrind and improve cuttings integrity for better logging.
API-ready string integration: Ships with 6 5/8 API REG PIN; alternative threads available on request to match your Drilling Rod Bit inventory.
Operational window that protects the stack: The specified WOB/RPM range stabilizes torque and lowers the risk of cone lockup.
Export-practical: MOQ 1, crate packaging, and configurable pin/nozzle kits simplify mobilization for multi-site programs.
HENGJI BIT SPECIFICATION | |
Bit Size | 6 1/2'' (165mm) |
IADC Code | 537 |
Series | HR |
Tooth type | TCI/tungsten carbide insert |
Connection | 6 5/8 API REG PIN |
Bearing | rubber sealed bearing |
Nozzle | three jet nozzles |
Rotary Speed(rpm) | 120~50 |
Weight on Bit(KN/MM) | 0.45~1.0 |
Application | water well,oil well,HDD,exploration,etc |
Formation | Soft to medium formation with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,etc. |
Bit Diameter / IADC: 6 1/2" (165 mm) / 537; harder trends: 637 option on request.
Tooth & Formation: TCI for soft–medium; steel tooth for very soft clays/chalk.
Bearing & Seal: Sealed journal or sealed roller; O-ring/grease rated for high-temp service.
Hydraulics: Three interchangeable jet nozzles; size to pump rate/mud weight/solids plan.
Connection (API): Standard 6 5/8 REG; optional 3-1/2 REG for lighter strings.
Operating Window: RPM 50–120; WOB 0.45–1.0 kN/mm (adjust at transitions/hard streaks).
Gauge/Shirttail: Gauge protection and shirttail hardfacing available.
Applications: Water well, geothermal starters, HDD pilots, municipal/ag wells, exploration.
Compliance & Docs: API practices, material/inspection reports available upon PO.
Commercials: MOQ 1; wooden crate; typical quick-ship on stocked sizes.
Adjacent Tools: breaker for tricone bit, dig reamer drill bit, stabilizers, subs.
Your crews need more than a spec sheet—they need predictable footage and fewer surprises. This bit’s IADC 537 structure, sealed bearings, and three-jet hydraulics create a forgiving operating window that keeps torque smooth and the shakers unclogged. We publish a clear WOB/RPM range so supervisors can plan pumps and penetration rates without guesswork. API-standard connections, MOQ-friendly purchasing, and crate packaging streamline procurement across multiple sites. And because drilling rarely stops at the pilot, we support the full workflow with compatible breaker for tricone bit, Drilling Rod Bit, and dig reamer drill bit options—one vendor, fewer variables, faster mobilization.
Q1. Can I run this bit on a 3-1/2" API REG string?
Yes—order the alternative pin spec. We’ll confirm top-drive torque limits and drill-string makeup before shipping.
Q2. Which nozzles should I select?
Choose jets that maintain annular velocity to suspend cuttings at your mud weight and flow limits. We’ll size the kit to your pump curve and solids plan.
Q3. How do I set WOB and RPM?
Start within the listed window, ramp WOB gradually, and avoid simultaneous max WOB/max RPM. Ease off across hard stringers to protect bearings.
Q4. Do you supply breakers and reamers?
Yes—breaker for tricone bit for safe make-up/break-out and dig reamer drill bit for enlarging HDD/water lines with controlled torque.
Q5. What documentation do you provide?
API-aligned build practices with material traceability and inspection reports are available with the shipment upon request.
On bottom, this well drill bit settles quickly and runs with a low, even hum—no sudden chatter when the formation changes. The TCI inserts cut and crush in one motion, so the bit stays engaged through shale bands without spiking torque. Three calibrated jets lift fines away from the cones, keeping the cutting structure sharp and the returns visibly cleaner at the shakers. A sealed bearing stack blocks mud intrusion and manages heat, so your RPM stays in the sweet spot for longer footage. The result is fewer unplanned trips, straighter pilots, and a steadier pump schedule. For contractors measured on meters per shift and rig hours per job, this water well drill bit is a predictable way to compress timelines and tighten unit costs.
Formation-matched IADC 537: Tuned for soft–medium formations where penetration speed and durability must balance across variable layers.
Sealed-bearing reliability: Rubber-sealed/journal architecture resists fines, extends cone life, and reduces bearing heat in mud rotary.
Hydraulic cleaning (3 jets): Sweeps the bit face to minimize regrind and improve cuttings integrity for better logging.
API-ready string integration: Ships with 6 5/8 API REG PIN; alternative threads available on request to match your Drilling Rod Bit inventory.
Operational window that protects the stack: The specified WOB/RPM range stabilizes torque and lowers the risk of cone lockup.
Export-practical: MOQ 1, crate packaging, and configurable pin/nozzle kits simplify mobilization for multi-site programs.
HENGJI BIT SPECIFICATION | |
Bit Size | 6 1/2'' (165mm) |
IADC Code | 537 |
Series | HR |
Tooth type | TCI/tungsten carbide insert |
Connection | 6 5/8 API REG PIN |
Bearing | rubber sealed bearing |
Nozzle | three jet nozzles |
Rotary Speed(rpm) | 120~50 |
Weight on Bit(KN/MM) | 0.45~1.0 |
Application | water well,oil well,HDD,exploration,etc |
Formation | Soft to medium formation with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,etc. |
Bit Diameter / IADC: 6 1/2" (165 mm) / 537; harder trends: 637 option on request.
Tooth & Formation: TCI for soft–medium; steel tooth for very soft clays/chalk.
Bearing & Seal: Sealed journal or sealed roller; O-ring/grease rated for high-temp service.
Hydraulics: Three interchangeable jet nozzles; size to pump rate/mud weight/solids plan.
Connection (API): Standard 6 5/8 REG; optional 3-1/2 REG for lighter strings.
Operating Window: RPM 50–120; WOB 0.45–1.0 kN/mm (adjust at transitions/hard streaks).
Gauge/Shirttail: Gauge protection and shirttail hardfacing available.
Applications: Water well, geothermal starters, HDD pilots, municipal/ag wells, exploration.
Compliance & Docs: API practices, material/inspection reports available upon PO.
Commercials: MOQ 1; wooden crate; typical quick-ship on stocked sizes.
Adjacent Tools: breaker for tricone bit, dig reamer drill bit, stabilizers, subs.
Your crews need more than a spec sheet—they need predictable footage and fewer surprises. This bit’s IADC 537 structure, sealed bearings, and three-jet hydraulics create a forgiving operating window that keeps torque smooth and the shakers unclogged. We publish a clear WOB/RPM range so supervisors can plan pumps and penetration rates without guesswork. API-standard connections, MOQ-friendly purchasing, and crate packaging streamline procurement across multiple sites. And because drilling rarely stops at the pilot, we support the full workflow with compatible breaker for tricone bit, Drilling Rod Bit, and dig reamer drill bit options—one vendor, fewer variables, faster mobilization.
Q1. Can I run this bit on a 3-1/2" API REG string?
Yes—order the alternative pin spec. We’ll confirm top-drive torque limits and drill-string makeup before shipping.
Q2. Which nozzles should I select?
Choose jets that maintain annular velocity to suspend cuttings at your mud weight and flow limits. We’ll size the kit to your pump curve and solids plan.
Q3. How do I set WOB and RPM?
Start within the listed window, ramp WOB gradually, and avoid simultaneous max WOB/max RPM. Ease off across hard stringers to protect bearings.
Q4. Do you supply breakers and reamers?
Yes—breaker for tricone bit for safe make-up/break-out and dig reamer drill bit for enlarging HDD/water lines with controlled torque.
Q5. What documentation do you provide?
API-aligned build practices with material traceability and inspection reports are available with the shipment upon request.
