B47K19H Coal Mine Drill Bit with 50-54 HRC Hardness for Dense Sand and Medium Hard Rocks
Professional-grade carbide bullet teeth drill bit designed for demanding mining and drilling applications. Engineered with high-grade alloy steel and tungsten carbide tips using advanced brazing technology.
- High wear resistance and extended service life
- Hardness rating: 50-54 HRC
- Advanced brazing technology for superior durability
- Custom manufacturing available per customer requirements
Coal cutting, mining operations, oil drilling, well digging, road milling, and various engineering drilling applications.
Specifically designed for dense sand, gravel layers, and medium hard rock formations.
| Part Number | Description | Unit Weight (kg) |
|---|---|---|
| C31HD | Rock Drilling Bit | 0.5 |
| C30 | Holder | 1.2 |
| B47K17.5H | Rock Drilling Bit | 1.2 |
| B47K19.5H | Rock Drilling Bit | 1.2 |
| B47K22H | Rock Drilling Bit | 1.2 |
| B47K17.5C/60 | Rock Drilling Bit | 1.5 |
| B43H | Holder | 2.2 |
| B85 | Holder | 2.2 |
| B85/2 | Holder with Carbide Tips | 2.4 |
Additional sizes and configurations available upon request for custom requirements.
Dongying OilMan Machinery Equipment Co. specializes in manufacturing high-quality drilling tools for road milling, coal mining, trenching, and various engineering applications. Our product range includes rotary drilling machine cutters, hydraulic grab cutters, diaphragm wall cutters, excavator cutters, shearer cutters, road milling cutters, and precision carbide brazing products.
Operating under ISO9001 quality management system with comprehensive inspection and testing procedures, we ensure consistent product quality and reliable performance for industrial applications.
Company: Dongying OilMan Machinery Equipment Co.
Address: North Two Road, Dongying City, Shandong Province, China
Mobile/WhatsApp/WeChat: +86 13475294399
Email: christal@oilmancn.com
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.