12 Inch 305-381mm DTH Drill Bits for Mining Drilling with 130-187kg Weight and Concave Face Design
Sollroc, with over 10 years of experience, is a professional manufacturer and supplier of high-performance rock drilling tools including DTH hammers and bits, RC hammers and bits, DTH drill rods, and top hammer drilling tools. Our products are widely used in mining, quarrying, water well drilling, and geotechnical applications.
We specialize in designing, manufacturing, and developing equipment for standard models and custom client needs. Our strict quality control processes ensure durable, superior products that meet international standards. We are committed to providing premium quality tools that maximize productivity for your projects.
- Strict quality control throughout manufacturing
- High-quality special steels and carbide materials
- Precision CNC machining
- Simple, reliable design with low failure rate
- Low air consumption with smooth drilling operation
- Maximum impact power for high penetration rates
| Bit Diameter | Flushing Holes | Gauge Buttons | Front Buttons | Weight (kg) |
|---|---|---|---|---|
| 305 mm (12") | 3*32 | 15*19 | 27*18+9*16 | 85 |
| 311 mm (12 1/4") | 3*32 | 15*19 | 27*18+9*16 | 91 |
| 330 mm (13") | 3*32 | 15*19+12*19 | 27*18+16*16 | 95 |
| 350 mm (13 3/4") | 3*32 | 15*19+12*19 | 28*18+20*16 | 97 |
| 356 mm (14") | 4*48 | 16*19+16*19 | 28*18+20*16 | 98 |
| 381 mm (15") | 4*48 | 16*19+12*19 | 42*18 | 101 |
Mining, blasting hole drilling, construction, water well drilling, exploration, geological drilling, forepoling, piling, micropiling, underpinning, thermal well drilling, anchoring, horizontal drilling, and site investigation.
Carton + plywood case packaging for secure transportation.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.