7 Degree Tapered Rock Drill Button Bit 32-42mm for Mining and Construction Applications
7° tapered rock drill button bits engineered for efficient mining operations. These professional-grade drilling tools feature high-quality carbide construction and are designed for rock holes up to 50mm in diameter.
Ideal for metallurgical mines, geological exploration, water conservancy construction, power projects, transportation infrastructure, tunnel excavation, quarry operations, and national defense stone engineering projects.
| Bit Diameter (mm) | Bit Diameter (inch) | Front × Button Dia. | Gauge × Button Dia. | Angle | Front Flushing | Side Flushing | Skirt Type |
|---|---|---|---|---|---|---|---|
| 32 | 1 1/4 | 1×8 | 3×8 | 35° | 1 | 1 | Short Skirt |
| 33 | 1 19/64 | 2×7 | 5×7 | 35° | 2 | 1 | Short Skirt |
| 34 | 1 11/32 | 2×7 | 4×7 | 40° | 1 | 1 | Short Skirt |
| 35 | 1 3/8 | 2×7 | 5×8 | 35° | 1 | 1 | Short Skirt |
| 36 | 1 27/64 | 1×8 | 3×9 | 40° | 1 | 1 | Short Skirt |
| 36 | 1 27/64 | 2×7 | 5×8 | 35° | 1 | 1 | Short Skirt |
| 38 | 1 1/2 | 1×8 | 3×9 | 35° | 1 | 1 | Short Skirt |
| 38 | 1 1/2 | 2×7 | 5×8 | 35° | 1 | 1 | Short Skirt |
| 38 | 1 1/2 | 2×7 | 5×9 | 40° | 2 | 1 | Short Skirt |
| 40 | 1 37/64 | 1×8 | 3×9 | 30° | 1 | 1 | Short Skirt |
| 40 | 1 37/64 | 1×9 | 3×10 | 30° | 1 | 1 | Short Skirt |
| 40 | 1 37/64 | 1×9 | 3×9 | 35° | 1 | 1 | Short Skirt |
| 40 | 1 37/64 | 2×7 | 5×9 | 35° | 1 | 1 | Short Skirt |
| 42 | 1 21/32 | 1×8 | 3×9 | 30° | 1 | 1 | Short Skirt |
| 42 | 1 21/32 | 1×9 | 3×10 | 30° | 1 | 1 | Short Skirt |
| 42 | 1 21/32 | 1×9 | 3×9 | 35° | 1 | 1 | Short Skirt |
| 42 | 1 21/32 | 2×8 | 5×9 | 35° | 1 | 1 | Short Skirt |
| 32 | 1 1/4 | 2×7 | 5×7 | 35° | 1 | 1 | Long Skirt |
| 33 | 1 16/64 | 2×7 | 5×7 | 35° | 1 | 1 | Long Skirt |
| 35 | 1 3/8 | 2×7 | 5×8 | 35° | 1 | 1 | Long Skirt |
| 38 | 1 1/2 | 2×7 | 5×9 | 35° | 1 | 1 | Long Skirt |
| 41 | 1 5/8 | 2×7 | 5×9 | 35° | 1 | 1 | Long Skirt |
Kelleg is a market-oriented enterprise specializing in geotechnical anchoring solutions. We integrate R&D, design, procurement, sales, and customer service to provide comprehensive system solutions, product supply, and technical support for mining and construction applications.
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