Products Description
KATDRILLS Coupling Adapters
Coupling adapter is a type of Coupling, with different threads at both ends. Coupling adapters are designed to connect shank adapters to extension drill rods, or to join two extension drill rods together. All our couplings are fully compatible with our top hammer drilling systems, and are suitable for drilling operations in tunneling, construction, mining, quarrying and other related fields.
Parameters
| Steel grade | 23CrNi3Mo (Sanbar 64) |
| 1.Thread type | R22, R25, R28, R32, R38, T38, T45, T51 |
| 2.Diameter | 35mm, 40mm, 45mm, 55mm, 63mm, 66mm, 72mm, 76mm |
| 3.Length | 150mm, 155mm, 170mm, 180mm , 180mm, 190mm, 210mm , 235mm |
| 4.Coupling type | Semi-bridge, Full bridge, Adapter Coupling |
|
Semi-bridge |
|
R22-R25 R25-R28 R25-R32 R28-R32 R28-R38 R28-T38 R32-R38 R32-T38 R32-R38 R38-T38 R38-T45 T38-T45 T45-T51 |
|
Full bridge |
|
R22-R25 R25-R28 R25-R32 R28-R32 R28-R38 R28-T38 R32-R38 R32-T38 R32-R38 R38-T38 R38-T45 T38-T45 T38-T51 T45-T51 |
Coupling Adapters Application
Blast hole drilling for tunneling
Blast hole drilling for construction
Blast hole drilling for mining
Blast hole drilling for quarrying & more
Features
1.Full carburizing treatment is applied to boost surface hardness, thereby enhancing the Coupling Adapters wear resistance and extending their service life.
2.23CrNi3Mo alloy steel is adopted as the base material, a grade that stands on par with Sandvik Sandbar 64.
3.Exceptional cost-efficiency with superior performance at a competitive price point.
4.A comprehensive range of Coupling Adapters variants available to suit diverse drilling applications and working scenarios.
Our Service
At KAT Drilling Tools, we deliver customer-centric solutions for mining, construction, exploration, and oil & gas sectors-covering the full drill tool lifecycle.
Customized Design & Manufacturing
Bespoke drill bits/rods tailored to your drilling conditions, compliant with API/ISO standards. Rapid prototyping and batch production available.
Quality Control & Testing
Rigorous raw material, in-process, and final performance inspections. Detailed quality reports for every batch.
Technical Consultation & Support
Expert advice on tool selection, on-site training, and real-time troubleshooting to minimize downtime.
After-Sales Maintenance & Repair
Cost-effective maintenance, professional repair, and fast spare parts supply to extend tool lifespan.
Logistics & Supply Chain
Flexible delivery (bulk/JIT/emergency), secure packaging, and full customs/documentation support for global trade.
Long-Term Partnership
Customized service packages, dedicated account management, and continuous optimization based on your feedback.
Why choose us?
At KAT Drilling Tools, we stand out as your trusted drill tool partner for core advantages that deliver real value:
1. One-Stop Drill Tool Supply
2. Uncompromising Quality
3. Competitive Cost-Effectiveness
4. Professional Technical Support
5. End-to-End Service
6. Global Reliability
7. Trusted Long-Term Partnership
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