R25 64mm Retrac Button Bit Tungsten Carbide Threaded Rock Drill Bit for Quarrying Mining Construction
Product Introduction
The R25 64mm Retrac Button Bit is a top hammer rock drilling bit engineered for quarrying, mining, construction and general rock drilling. With a 64 mm (2-1/2 inch) drilling diameter and a retrac skirt design, this threaded button bit delivers dependable performance in fractured or loose rock formations where tool retrieval and borehole control are critical.
The retrac skirt reduces the risk of the bit becoming stuck or buried during drilling and helps maintain borehole straightness. The tungsten carbide button configuration provides effective rock penetration and long wear life under demanding conditions. Compatible with R25 drill rods, shank adapters and couplings, it forms part of a complete top hammer drilling system.
Key Features
- Retrac Skirt Design — Facilitates drill tool retrieval and reduces the risk of bit sticking in fractured or loose rock formations.
- 64 mm Drilling Diameter — A practical size for a wide range of top hammer rock drilling applications.
- Tungsten Carbide Buttons — Positioned on the gauge and face for effective rock penetration and wear resistance.
- Efficient Flushing — Optimized flushing holes remove rock cuttings and support faster, cleaner drilling.
- Improved Borehole Control — The retrac design helps maintain borehole straightness in broken or fractured formations.
- R25 Threaded Compatibility — Matches standard R25 threaded drill rods and top hammer drilling systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Retrac Button Bit |
| Thread | R25 |
| Bit Diameter | 64 mm (2-1/2 inch) |
| Application | Top Hammer Rock Drilling |
| Gauge Buttons | 8 × 10 mm |
| Front Buttons | 4 × 10 mm |
| Front Flushing Holes | 2 |
| Approx. Net Weight | 2.2 kg |
| Skirt Type | Retrac |
| Button Material | Tungsten Carbide |
| Suitable Drilling | Rock, Quarrying, Mining, Construction |
| Recommended System | R25 Threaded Drill String |
Applications
- Quarrying — Blast holes and production holes in quarry operations.
- Mining — Surface mining and general rock drilling.
- Construction — Foundation, infrastructure and general construction rock drilling.
- Tunneling — Selected tunneling and underground drilling with R25 top hammer systems.
- Rock Excavation — Ideal for fractured or broken rock where drill-bit retrieval is challenging.
FAQ
What is an R25 64mm Retrac Button Bit?
It is a 64 mm top hammer rock drilling bit with an R25 threaded connection and a retrac skirt, designed for quarrying, mining, construction and general rock drilling.
What is the advantage of a Retrac Button Bit?
The retrac skirt facilitates drill-bit retrieval and reduces the risk of sticking in fractured or loose rock formations.
How many carbide buttons does this bit have?
It has 8 gauge buttons and 4 front buttons, for a total of 12 tungsten carbide buttons.
What is the weight of the 64mm R25 Retrac Button Bit?
The referenced 64 mm R25 configuration has an approximate net weight of 2.2 kg.
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