Top Hammer Rock Drill Button Bits 38mm 42mm with 7° 11° 12° Taper Angles for Industrial Drilling Applications
Professional top hammer rock drilling tools including 38mm and 42mm tapered rock drill button bits with 7°, 11°, and 12° taper angles. Engineered for efficient rock drilling operations in various industrial applications.
- High-quality carbide and special steel construction
- Compatible with light rock drills for holes up to 50mm diameter
- Available in multiple taper angles: 7°, 11°, and 12°
- Standard sizes: 38mm and 42mm
- Durable design for extended service life
Ideal for metallurgical mines, geological exploration, water conservancy construction, power projects, transportation infrastructure, tunnel construction, quarries, and national defense stone engineering projects.
| Bit Diameter (mm) | Bit Diameter (inch) | Front No.×Button Dia. | Gauge No.×Button Dia. | Tip Angle | Front Flushing Hole | Side Flushing Hole | 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 |
| 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 |
| Bit Diameter (mm) | Bit Diameter (inch) | Front No.×Button Dia. | Gauge No.×Button Dia. | Tip Angle | Front Flushing Hole | Side Flushing Hole | Skirt Type |
|---|---|---|---|---|---|---|---|
| 32 | 1 1/4 | 1×8 | 3×8 | 35° | 1 | 2 | Short Skirt |
| 33 | 1 19/64 | 2×7 | 4×7 | 40° | 1 | 1 | Short Skirt |
| 34 | 1 11/32 | 2×7 | 4×7 | 40° | 1 | 1 | Short Skirt |
| 35 | 1 3/8 | 2×7 | 5×7 | 35° | 1 | 1 | Short Skirt |
| 36 | 1 27/64 | 1×8 | 3×9 | 40° | 1 | 1 | Short Skirt |
| 38 | 1 1/2 | 1×9 | 3×9 | 40° | 1 | 1 | Short Skirt |
| 40 | 1 37/64 | 1×9 | 3×9 | 40° | 1 | 1 | Short Skirt |
| 41 | 1 5/8 | 2×7 | 5×9 | 35° | 1 | 1 | Short Skirt |
| Bit Diameter (mm) | Bit Diameter (inch) | Front No.×Button Dia. | Gauge No.×Button Dia. | Tip Angle | Front Flushing Hole | Side Flushing Hole | Skirt Type |
|---|---|---|---|---|---|---|---|
| 28 | 1 7/64 | 1×7 | 3×7 | 20° | 1 | 1 | Short Skirt |
| 29 | 1 9/64 | 1×7 | 3×7 | 40° | 1 | 1 | Short Skirt |
| 30 | 1 3/16 | 1×7 | 3×7 | 40° | 1 | 1 | Short Skirt |
| 32 | 1 1/4 | 2×7 | 5×7 | 40° | 2 | 1 | Short Skirt |
| 33 | 1 19/64 | 2×7 | 5×7 | 35° | 1 | 1 | Short Skirt |
| 34 | 1 11/32 | 2×7 | 5×8 | 35° | 1 | 1 | Short Skirt |
| 35 | 1 3/8 | 2×7 | 4×7 | 35° | 1 | 1 | Short Skirt |
| 36 | 1 27/64 | 2×7 | 5×9 | 35° | 1 | 1 | Short Skirt |
| 37 | 1 29/64 | 2×7 | 5×9 | 40° | 1 | 1 | Short Skirt |
| 38 | 1 1/2 | 1×9 | 3×9 | 40° | 1 | 1 | Short Skirt |
| 41 | 1 5/8 | 2×7 | 5×9 | 35° | 1 | 1 | Short Skirt |
Kelleg is a market-oriented enterprise integrating R&D, design, procurement, sales, and customer service. We specialize in geotechnical anchoring and are committed to building a professional service platform that integrates system solution provision, product supply, and technical support. Our professional teams provide comprehensive services including pre-sale technical consultation, product selection guidance, order management, and on-site technical support.
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