Rock Drilling Tools
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- Bit diameter: 33-165mm
- Thread types: R thread, T thread
- Button types: Domed button, semi-ballistic button, ballistic button, pointed button, flat button
- Material: Low-carbon alloy steel
Typical Applications
Mining and quarrying operations, rock excavation and blasting projects
Rock excavation works
Mining
Technical Specifications
R Thread Button Bit
| Model | Diameter of bit, mm | Thread | No. of buttons x button diameter | Gauge teeth angle, ° | No. of flushing holes | Weight, kg | ||
| Gauge | Front | Side | Front | |||||
| | 33 | R22 | 5 x7 | 2 x7 | 35 | 2 | 1 | 0.4 |
| | 35 | R25 | 5 x8 | 2 x7 | 35 | 2 | 1 | 0.4 |
| | 38 | R25 | 5 x8 | 2 x7 | 35 | 1 | 2 | 0.5 |
| | 41 | R25 | 5 x9 | 2 x8 | 35 | 1 | 2 | 0.55 |
| | 41 | R28 | 5 x9 | 2 x8 | 35 | 1 | 2 | 0.55 |
| | 41 | R32 | 5 x9 | 2 x9 | 35 | 2 | 1 | 0.55 |
| | 43 | R32 | 6 x9 | 3 x8 | 30 | 1 | 2 | 0.67 |
| | 45 | R28 | 6 x10 | 3 x8 | 35 | 3 | 1 | 0.8 |
| | 45 | R32 | 6 x10 | 3 x8 | 35 | 2 | 1 | 0.8 |
| | 45 | R32 | 6 x9 | 3 x8 | 30 | 1 | 3 | 0.8 |
| | 45 | R32 | 6 x10 | 3 x8 | 35 | 1 | 3 | 0.8 |
| | 48 | R32 | 6 x10 | 3 x9 | 35 | 1 | 3 | 0.9 |
| | 51 | R32 | 6 x10 | 3 x9 | 35 | 1 | 3 | 1.1 |
| | 57 | R32 | 6 x11 | 3 x10 | 35 | - | 3 | 1.3 |
| | 64 | R32 | 6 x12 | 3 x11 | 40 | 2 | 1 | 1.6 |
| | 64 | R32 | 8 x10 | 4 x10 | 35 | 2 | 2 | 1.6 |
| | 64 | R38 | 6 x12 | 3 x11 | 35 | 2 | 1 | 1.6 |
| | 76 | R32 | 6 x12 | 6 x12 | 35 | 1 | 2 | 2.7 |
| | 76 | R32 | 8 x12 | 4 x12 | 35 | 2 | 2 | 2.7 |
| | 76 | R38 | 8 x12 | 4 x12 | 35 | 2 | 2 | 2.3 |
| | 89 | R32 | 8 x13 | 5 x12 | 35 | - | 3 | 2.9 |
| | 89 | R38 | 8 x13 | 5 x12 | 35 | 2 | 2 | 3.3 |
T Thread Button Bit
| Model | Diameter of bit, mm | Thread | No. of buttons x button diameter | Gauge teeth angle, ° | No. of flushing holes | Weight, kg | ||
| Gauge | Front | Side | Front | |||||
| | 64 | T38 | 6x12 | 3x11 | 40 | 2 | 1 | 1.6 |
| | 64 | T38 | 6x12 | 3x11 1x9 | 35 | - | 3 | 1.6 |
| | 64 | T38 | 8x10 | 4x10 | 35 | 1 | 2 | 1.6 |
| | 76 | T38 | 8x12 | 4x12 | 35 | 1 | 2 | 2.4 |
| | 76 | T38 | 6x13 | 4x12 | 40 | 1 | 2 | 2.45 |
| | 76 | T45 | 8x12 | 4x12 | 35 | 2 | 4 | 2.5 |
| | 76 | T45 | 8x12 | 5x11 | 35 | 1 | 4 | 2.5 |
| | 89 | T38 | 8x12 | 4x12 2x10 | 35 | - | 4 | 3 |
| | 89 | T38 | 8x13 | 5x12 | 35 | 1 | 4 | 3.25 |
| | 89 | T45 | 8x13 | 4x12 2x10 | 35 | - | 4 | 3.3 |
| | 89 | T45 | 8x13 | 5x12 | 35 | 1 | 4 | 3.4 |
| | 89 | T51 | 8x13 | 4x12 2x10 | 35 | - | 4 | 3.4 |
| | 89 | T51 | 8x13 | 5x12 | 35 | - | 4 | 3.4 |
| | 92 | GT60 / GW60 | 8x14 | 6x12 | 35 | - | 4 | 5.8 |
| | 102 | T45 | 8x14 | 4x12 2x10 | 35 | - | 4 | 4.2 |
| | 102 | T45 | 9x13 | 9x11 | 35 | - | 3 | 4.3 |
| | 102 | T51 | 8x14 | 4x12 2x11 | 35 | - | 4 | 4.2 |
| | 102 | T51 | 9x13 | 9x11 | 35 | - | 3 | 4.5 |
| | 102 | GT60 / GW60 | 9x14 | 9x12 | 35 | - | 3 | 6.5 |
| | 115 | T45 | 8x14 | 4x14 3x12 | 35 | - | 4 | 5.5 |
| | 115 | T45 | 9x14 | 10x12 | 35 | - | 3 | 5.8 |
| | 115 | T51 | 8x14 | 4x14 4x12 | 35 | - | 4 | 5.5 |
| | 127 | T45 | 9x15 | 10x13 | 35 | - | 3 | 7.1 |
| | 165 | GT60 / GW60 | 9x16 | 12x16 | 35 | - | 3 | 15 |
Retrac Thread Button Bit
| Model | Diameter of bit, mm | Thread | No. of buttons x button diameter | Gauge teeth angle, ° | No. of flushing holes | Weight, kg | ||
| Gauge | Front | Side | Front | |||||
| | 57 | R32 | 6x11 | 3x10 | 35 | - | 3 | 1.6 |
| | 64 | R32 | 6x11 | 3x11 1x9 | 35 | 1 | 3 | 2 |
| | 64 | T38 | 6x12 | 3x11 | 35 | 1 | 2 | 2 |
| | 64 | T38 | 8x10 | 4x10 1x9 | 35 | - | 4 | 2 |
| | 76 | T38 | 6x11 | 4x11 | 35 | 2 | 2 | 3.2 |
| | 76 | T38 | 8x11 | 4x11 1x11 | 35 | - | 4 | 3.2 |
| | 76 | T45 | 8x12 | 4x11 | 35 | 2 | 2 | 3.1 |
| | 76 | T45 | 8x12 | 4x11 1x11 | 35 | - | 4 | 3.1 |
| | 78 | T38 | 8x12 | 4x11 1x11 | 35 | - | 4 | 3.5 |
| | 89 | R32 | 8x12 | 5x11 | 35 | - | 2 | 4.8 |
| | 89 | R32 | 8x12 | 4x11 2x11 | 35 | - | 4 | 4.8 |
| | 89 | T38 | 8x13 | 5x12 | 35 | 2 | 2 | 4.1 |
| | 89 | T38 | 8x12 | 4x11 2x11 | 35 | - | 4 | 4.1 |
| | 89 | T45 | 8x13 | 5x12 | 35 | 2 | 2 | 4.5 |
| | 89 | T45 | 8x13 | 4x12 1x12 | 35 | - | 4 | 4.5 |
| | 89 | T51 | 8x13 | 5x12 | 35 | 2 | 2 | 4.3 |
| | 89 | T51 | 8x13 | 4 *13 1x12 | 35 | - | 4 | 4.3 |
| | 102 | T45 | 8x12 | 7x12 | 35 | - | 2 | 7.1 |
| | 102 | T45 | 9x13 | 9x11 | 35 | - | 3 | 6.5 |
| | 102 | T45 | 8x14 | 4x12 2x11 | 35 | - | 4 | 7.3 |
| | 102 | T51 | 8x12 | 7x11 | 35 | - | 2 | 6.5 |
| | 102 | T51 | 9x13 | 9x11 | 35 | - | 3 | 6.8 |
| | 102 | T51 | 8x14 | 4x12 2x11 | 35 | - | 4 | 6.8 |
| | 102 | T45 | 8x14 | 6x13 | 35 | - | 2 | 7.1 |
| | 115 | T45 | 8x14 | 4x13 3x12 | 35 | - | 4 | 7.8 |
| | 115 | T45 | 9x14 | 10x12 | 35 | - | 3 | 7.9 |
| | 115 | T51 | 9x14 | 10x12 | 35 | - | 3 | 7.9 |
| | 115 | T51 | 8x14 | 7x13 | 35 | - | 2 | 8 |
| | 115 | T51 | 8x14 | 4x12 2x12 | 35 | - | 4 | 7.9 |
| | 127 | T45 | 8x14 | 8x13 | 35 | - | 2 | 11 |
| | 127 | T45 | 9x15 | 10x13 | 35 | - | 3 | 12.3 |
| | 127 | T51 | 9x15 | 10x13 | 35 | - | 3 | 12.3 |
| | 127 | T51 | 8x15 | 8x13 | 35 | - | 2 | 12 |
| | 127 | T51 | 8x14 | 8x14 4x12 | 35 | - | 4 | 12 |
Reaming Button Bit
| Model | Diameter of bit, mm | Thread | No. of buttonsx button diameter | Gauge teeth angle, ° | No. of flushing holes | Weight, kg | ||
| Gauge | Front | Side | Front | |||||
| | 76 | R28 | 9x12 | 2x10 1x9 | 35 | 3 | 1 | 1.8 |
| | 76 | R28 | 9x12 | 3x10 | 35 | 3 | 1 | 2 |
| | 76 | R32 | 9x12 | 3x10 | 35 | 3 | 1 | 1.8 |
| | 76 | R32 | 9x12 | 3x10 | 35 | 3 | 1 | 2 |
| | 89 | R32 | 12x12 | 3x10 | 35 | 2 | 1 | 2.5 |
| | 89 | R32 | 12x12 | 3x10 | 35 | 2 | 1 | 2.7 |
| | 102 | R32 | 12x13 | 2x13 1x11 | 35 | 2 | 1 | 3.5 |
| | 102 | R32 | 14x12 | 4x8 | 35 | 2 | 1 | 3.8 |
| | 127 | T38 | 14x14 | 2x12 1x11 | 35 | 2 | 1 | 4.8 |
| | 127 | T38 | 14x14 | 3x10 | 35 | 2 | 1 | 5.3 |
Key Advantages
- Manufactured from high-quality low-carbon alloy steel, offering high strength, excellent wear resistance, and strong impact resistance, suitable for harsh drilling environments.
- Reliable threaded connection between drill bit and drill rod ensures easy installation and removal, while maintaining good coaxiality and efficient torque transmission.
How is a suitable top hammer drill bit selected?
Top hammer drill bit selection is mainly determined by the following factors: thread type, bit diameter, button size and quantity, button grade (hardness and toughness).
Which button type is more suitable: domed buttons or sharp buttons?
Domed buttons are generally recommended for hard and abrasive rock formations, as they provide superior wear resistance and longer service life. Sharp buttons are more suitable for soft to medium-soft rock formations. Under these conditions, sharp buttons typically achieve faster penetration rates than domed buttons.