Products Description
The dome button bit is a type of reaming drilling tool.
KATDRILLS reaming drilling tools
Reaming drilling tools are deployed to enlarge the borehole diameter to the required size, following the completion of a pilot hole drilled to the target depth. Our product portfolio includes foru rock reaming tool variants: pilot reaming drilling tools, dome reaming button bits, adapter reaming button bits, and Conical Reamer Drill Bit.
Pilot reaming drilling tools adopt a split structure, integrating pilot adapters and reaming button bits as two separate components. By contrast, both dome reaming button bits and adapter reaming button bits(hole open bit) feature a one-piece design for enhanced structural stability.
Parameters
| Thread Size: |
SR28, R32, R35, SR35, T38, T45, T51, ST58 |
| Head diameters | 76mm - 152mm |
| Buttons: | Spherical buttons, Ballistic buttons, Parabolic Buttons |
Dome bit, as a reaming bit, are specialized drilling tools designed for post-pilot-hole operations, serving the following core purposes in various drilling scenarios:
- Borehole diameter expansion
- Borehole wall finishing
- Adaptive drilling for complex formations
- Synergistic operation with pilot drilling tools
Features
1, One-piece integrated structure for exceptional structural stability and reduced operational failure risks.
2, Domed button head design optimizes rock-breaking efficiency and minimizes bit jamming in tough formations.
3, High-hardness alloy construction delivers superior wear resistance and extended service life.
4, Precision reaming performance ensures smooth, uniform borehole walls for subsequent construction processes.
5, Broad compatibility with common drilling rigs, suitable for both soft soil and hard rock drilling scenarios.
Specification
|
Dome bits (reaming bit) |
Thread |
Diameter |
|
|
mm |
inch |
||
|
|
SR28 |
76 |
3" |
|
R32 |
76 |
3" |
|
|
89 |
3 1/2" |
||
|
102 |
4" |
||
|
115 |
4 1/2" |
||
|
127 |
5" |
||
|
SR35 |
89 |
3 1/2" |
|
|
102 |
4" |
||
|
115 |
4 1/2" |
||
|
127 |
5" |
||
|
T38 |
102 |
4" |
|
|
115 |
4 1/2" |
||
|
127 |
5" |
||
|
T45 |
127 |
5" |
|
|
152 |
6" |
||
|
T51 |
152 |
6" |
|
|
ST58 |
152 |
6" |
|
|
High-quality cemented carbide |
Vacuum heat treatment |
|
|
|
|
Strict testing standards |
|
|
|
|
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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