 |
17 1/2" IADC 517 API Standard Tungsten Carbide Insert Tooth Bit engineered for foundation drilling where soft to medium-soft strata dominate.
7 5/8" API REG pin, three interchangeable jets, and elastomer-sealed journals deliver dependable uptime in mud service.
Built to hold gauge and track straight, cutting reaming passes and preserving casing clearance.
A balanced TCI layout provides a clean “bite-and-sweep” feel—steady torque, crisp cuttings, and predictable ROP for contractors operating mixed fleets.
| Quantity: | |
|---|---|
Built for large-diameter foundation work, this 17 1/2'' Tungsten Carbide Insert Tooth Bit moves quickly from first bite to a calm, linear ROP. Operators notice the sound first: no harsh chatter, just a constant hum as jets sweep fines off the cones and the bottom cleans visibly on the shakers. The bit’s balanced mass and TCI geometry help it track straight, so casing advances predictably and deviation corrections drop. In abrasive slurries, gauge armor stretches life by holding hole size longer, while the elastomer-sealed journal pack stays stable through pump ramps and temperature swings. The outcome is fewer unplanned trips and tighter schedule control.
Formation-tuned TCI layout—crest/heel balance for fast starts and low regrind in soft to medium-soft rock.
Clean hydraulics—three jets focus energy at the cutter face to cool inserts and lift fines before they recut.
Gauge longevity—armor and gauge inserts help preserve OD, maintaining verticality and easing casing push.
Stable seal life—pressure-compensated elastomer seals with high-temp grease for consistent hours in hot mud.
Low-friction rotation—polished journals and anti-galling treatment protect bearings during parameter swings.
API-compliant interface—plug-and-play with common subs, stabilizers, and mud programs across multi-rig fleets.
| Item | Value |
|---|---|
| Bit Size | 17 1/2" (444.5 mm) |
| IADC Code | 517 |
| Tooth Type | TCI (Tungsten Carbide Inserts) |
| Bearing / Seal | Elastomer-sealed journal system |
| Circulation | Mud |
| Nozzles | 3 × jet, interchangeable |
| Connection | 7 5/8" API REG PIN |
| Gauge / Shirttail Protection | Available |
| Recommended RPM | 140–60 r/min |
| WOB | 0.35–1.0 (per manufacturer window) |
| Target Formations | Clay, mudstone, gypsum, salt, soft limestone |
| Typical Uses | Foundation piles, water well, HDD, geothermal, construction drilling |
How to use these specs: Treat the IADC 517 profile as your soft-formation baseline, then tune hydraulics via interchangeable jets to match pump capacity and solids loading. The 7 5/8" API REG pin integrates with standard subs and stabilizers, minimizing changeovers on multi-rig sites. Stay within the RPM/WOB window while watching returns; pursue a sharp, even sound at the floor—steady torque and uniform cuttings signal optimal load. Gauge/shirttail protection safeguards diameter in long runs, cutting reaming time and keeping piles true. Use the table as a rig-up checklist before spud-in and during parameter audits.
Foundation piles, water-well, HDD pilot/enlargement, geothermal, and construction shafts.
Soft to medium-soft strata: clay, mudstone, gypsum, salt, soft limestone; tolerant of mixed seams with controlled WOB/RPM.
Prioritize projects where hole quality, predictable ROP, and low reaming burden drive total cost per meter.
Start in the 140–60 r/min range; apply WOB within the stated window and ramp gradually to stabilize torque.
Select nozzle IDs to achieve high jet velocity at the cutter face; optimize for clean returns, not just standpipe pressure.
Maintain steady weight; adjust RPM to avoid whirl and keep the audible “even bite.”
Revisit jet size and WOB as mud density/solids rise to keep inserts cool and reduce regrind.Cutting Structure & Gauge Protection
TCI patterning blends aggressive crest cutters with supportive heel rows to reduce micro-spall.
Hardfacing on gauge lands and palms resists slurry abrasion during long circulation cycles.
Extended gauge inserts + shirttail armor slow OD loss, reducing deviation and trimming reaming passes.
Elastomer-sealed journal bearings for thermal stability and debris exclusion in mud service.
Pressure compensator maintains seal preload through pump ramps and temperature swings.
High-temperature lubricant and polished journals lower friction, supporting longer footage between trips.
Forged alloy steel body with deep carburizing for core strength and crack resistance.
Insert grades selected for edge retention in soft formations without brittle failures.
Surface hardfacing shields high-wear lands; silvered cone IDs reduce galling risk.
3-jet architecture concentrates energy where cuttings pack most.
Interchangeable jets enable on-rig tuning to pump capacity and expected solids loading.
Flow path geometry encourages face cleaning over cone flooding, reducing heat-soak and secondary crushing.
API-standard connection and inspection documented before shipment.
Serialized traceability at lot level: material heat, machining, assembly, and test records.
Dimensional/pressure checks on sealed assemblies; documentation available for site QA and audit trails.
Operational certainty: A forgiving parameter window and efficient hydraulics reduce NPT, enabling tighter daily meterage forecasts.
Lower total cost per meter: Gauge retention, straight tracking, and clean bottoms cut reaming time, fuel burn, and bit-related downtime.
Fleet compatibility: API REG pin and standard jet kits simplify spares, crossovers, and training across multi-rig operations.
Data-forward support: Pre-job application review translates your lithology and pump data into jet/WOB/RPM settings; on-call adjustments keep performance stable as ground changes.
Transparent quality: Each bit ships with serial ID and inspection records to support site QA, warranty, and future root-cause analysis.
What formations suit IADC 517?
Soft, high-drillability rock—clay, mudstone, soft limestone, gypsum, and salt; mixed seams are workable with careful parameter control.
Can I customize nozzles?
Yes. Interchangeable jets let you match flow and solids while maintaining jet velocity at the cutter face.
What connection is standard?
7 5/8" API REG PIN, compatible with common subs and stabilizers used in foundation drilling.
How should I set parameters?
Begin at 140–60 r/min and within the stated WOB window; tune for smooth torque, clean returns, and a consistent “even bite.”
What about packaging and lead time?
Export-grade wooden crate as standard; dispatch depends on stock and any customization (jets, branding, paperwork).
Do you provide technical support?
Yes—application engineers can review your logs and recommend jets/parameters before mobilization and during operations.
Built for large-diameter foundation work, this 17 1/2'' Tungsten Carbide Insert Tooth Bit moves quickly from first bite to a calm, linear ROP. Operators notice the sound first: no harsh chatter, just a constant hum as jets sweep fines off the cones and the bottom cleans visibly on the shakers. The bit’s balanced mass and TCI geometry help it track straight, so casing advances predictably and deviation corrections drop. In abrasive slurries, gauge armor stretches life by holding hole size longer, while the elastomer-sealed journal pack stays stable through pump ramps and temperature swings. The outcome is fewer unplanned trips and tighter schedule control.
Formation-tuned TCI layout—crest/heel balance for fast starts and low regrind in soft to medium-soft rock.
Clean hydraulics—three jets focus energy at the cutter face to cool inserts and lift fines before they recut.
Gauge longevity—armor and gauge inserts help preserve OD, maintaining verticality and easing casing push.
Stable seal life—pressure-compensated elastomer seals with high-temp grease for consistent hours in hot mud.
Low-friction rotation—polished journals and anti-galling treatment protect bearings during parameter swings.
API-compliant interface—plug-and-play with common subs, stabilizers, and mud programs across multi-rig fleets.
| Item | Value |
|---|---|
| Bit Size | 17 1/2" (444.5 mm) |
| IADC Code | 517 |
| Tooth Type | TCI (Tungsten Carbide Inserts) |
| Bearing / Seal | Elastomer-sealed journal system |
| Circulation | Mud |
| Nozzles | 3 × jet, interchangeable |
| Connection | 7 5/8" API REG PIN |
| Gauge / Shirttail Protection | Available |
| Recommended RPM | 140–60 r/min |
| WOB | 0.35–1.0 (per manufacturer window) |
| Target Formations | Clay, mudstone, gypsum, salt, soft limestone |
| Typical Uses | Foundation piles, water well, HDD, geothermal, construction drilling |
How to use these specs: Treat the IADC 517 profile as your soft-formation baseline, then tune hydraulics via interchangeable jets to match pump capacity and solids loading. The 7 5/8" API REG pin integrates with standard subs and stabilizers, minimizing changeovers on multi-rig sites. Stay within the RPM/WOB window while watching returns; pursue a sharp, even sound at the floor—steady torque and uniform cuttings signal optimal load. Gauge/shirttail protection safeguards diameter in long runs, cutting reaming time and keeping piles true. Use the table as a rig-up checklist before spud-in and during parameter audits.
Foundation piles, water-well, HDD pilot/enlargement, geothermal, and construction shafts.
Soft to medium-soft strata: clay, mudstone, gypsum, salt, soft limestone; tolerant of mixed seams with controlled WOB/RPM.
Prioritize projects where hole quality, predictable ROP, and low reaming burden drive total cost per meter.
Start in the 140–60 r/min range; apply WOB within the stated window and ramp gradually to stabilize torque.
Select nozzle IDs to achieve high jet velocity at the cutter face; optimize for clean returns, not just standpipe pressure.
Maintain steady weight; adjust RPM to avoid whirl and keep the audible “even bite.”
Revisit jet size and WOB as mud density/solids rise to keep inserts cool and reduce regrind.Cutting Structure & Gauge Protection
TCI patterning blends aggressive crest cutters with supportive heel rows to reduce micro-spall.
Hardfacing on gauge lands and palms resists slurry abrasion during long circulation cycles.
Extended gauge inserts + shirttail armor slow OD loss, reducing deviation and trimming reaming passes.
Elastomer-sealed journal bearings for thermal stability and debris exclusion in mud service.
Pressure compensator maintains seal preload through pump ramps and temperature swings.
High-temperature lubricant and polished journals lower friction, supporting longer footage between trips.
Forged alloy steel body with deep carburizing for core strength and crack resistance.
Insert grades selected for edge retention in soft formations without brittle failures.
Surface hardfacing shields high-wear lands; silvered cone IDs reduce galling risk.
3-jet architecture concentrates energy where cuttings pack most.
Interchangeable jets enable on-rig tuning to pump capacity and expected solids loading.
Flow path geometry encourages face cleaning over cone flooding, reducing heat-soak and secondary crushing.
API-standard connection and inspection documented before shipment.
Serialized traceability at lot level: material heat, machining, assembly, and test records.
Dimensional/pressure checks on sealed assemblies; documentation available for site QA and audit trails.
Operational certainty: A forgiving parameter window and efficient hydraulics reduce NPT, enabling tighter daily meterage forecasts.
Lower total cost per meter: Gauge retention, straight tracking, and clean bottoms cut reaming time, fuel burn, and bit-related downtime.
Fleet compatibility: API REG pin and standard jet kits simplify spares, crossovers, and training across multi-rig operations.
Data-forward support: Pre-job application review translates your lithology and pump data into jet/WOB/RPM settings; on-call adjustments keep performance stable as ground changes.
Transparent quality: Each bit ships with serial ID and inspection records to support site QA, warranty, and future root-cause analysis.
What formations suit IADC 517?
Soft, high-drillability rock—clay, mudstone, soft limestone, gypsum, and salt; mixed seams are workable with careful parameter control.
Can I customize nozzles?
Yes. Interchangeable jets let you match flow and solids while maintaining jet velocity at the cutter face.
What connection is standard?
7 5/8" API REG PIN, compatible with common subs and stabilizers used in foundation drilling.
How should I set parameters?
Begin at 140–60 r/min and within the stated WOB window; tune for smooth torque, clean returns, and a consistent “even bite.”
What about packaging and lead time?
Export-grade wooden crate as standard; dispatch depends on stock and any customization (jets, branding, paperwork).
Do you provide technical support?
Yes—application engineers can review your logs and recommend jets/parameters before mobilization and during operations.
