1. Product Overview
17½” TCI IADC 537 is a large-diameter tungsten carbide insert (TCI) roller-cone drill bit engineered for efficient rotary drilling in soft-to-medium and medium formations. It is primarily used in oil & gas, water-well, mining, geothermal, and foundation drilling where reliable penetration and extended bit life are essential. The bit combines durable carbide inserts, optimized cutting structures, and robust roller-cone construction to support consistent drilling performance and reduced replacement frequency. Its large diameter and industrial-grade design make it a strategic choice for demanding drilling programs requiring dependable performance and competitive operating costs.
2. Key Specifications & Technical Characteristics
- Product Type: TCI roller-cone/tricone drill bit
- Bit Size: 17½ inches (444.5 mm)
- IADC Classification: 537
- Cutting Structure: Tungsten carbide inserts (TCI)
- Material Components: High-strength alloy steel body/cones with tungsten carbide cutting inserts
- Formation Range: Soft-to-medium and medium formations, subject to formation-specific drilling conditions
- Bit Configuration: Three-cone rotary drilling design
- Bearing System: Sealed bearing configuration associated with IADC 537
- Physical Form: Large-diameter three-cone drilling bit
- Application Compatibility: Rotary drilling rigs and drilling systems designed for 17½” bit sizes
- Packaging: Heavy-duty export packaging, wooden cases or protective industrial packaging
- Quality Documentation: Inspection, dimensional, material and product documentation available according to supply requirements
- Shelf Life: Not generally applicable when stored correctly in a dry, protected environment
3. Core Industrial Applications
- Oil & Gas Drilling: Used for drilling large-diameter sections of wells where dependable rock cutting and penetration are required.
- Water-Well Drilling: Suitable for large-diameter boreholes and groundwater exploration projects.
- Mining & Exploration: Supports rotary drilling operations in mineral exploration and related drilling programs.
- Geothermal Drilling: Applicable to demanding borehole construction where durable cutting structures are required.
- Foundation & Construction Drilling: Can be deployed for large-bore drilling applications using compatible rotary equipment.
- Performance Advantage: TCI inserts provide durable formation engagement and effective cutting action, while the three-cone configuration promotes balanced rock breakdown and efficient energy transfer.
- Operational Value: Designed to support reliable penetration, extended operating intervals, reduced bit-change frequency, and improved drilling economics compared with less durable cutting configurations.
4. Competitive Advantages
- Quality Consistency: Robust alloy-steel construction and tungsten carbide inserts support repeatable drilling performance across demanding applications.
- Supply Reliability: Suitable for bulk procurement programs and planned drilling operations requiring dependable industrial supply.
- Logistics Capability: Export-oriented packaging and handling support international shipment and project-based procurement.
- Price Competitiveness: Bulk sourcing provides opportunities for competitive project pricing and improved total drilling economics.
- Durability: TCI cutting structures are engineered to withstand substantial mechanical loading and abrasive drilling conditions.
- Technical Support: Product specifications, inspection documentation and application information can be provided according to buyer requirements.
- Strategic Sourcing Value: Offers drilling contractors, distributors and energy/mining procurement teams a practical combination of large-diameter capability, durability, supply flexibility and cost efficiency.
5. Commercial & Supply Information
- Minimum Order Quantity (MOQ): BULK 20MT
- Loading Capacity: Approximately 20–22 MT per 20-foot container, subject to final packaging, bit configuration and applicable container payload limits









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