R32 52mm Drop Center Stone Retrac Rock Drill Bit
R32 52mm Drop Center Rock Stone Retrac Rock Drill Bit
Thread Button bit is well known for its high wear resistance on
medium-hardto hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength). Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture.
Main Products:
1. Integral Drill Rods, Plug Hole Rods
Shank : H22x108mm, H19x108mm, standard hex.;
Bit diameters: 29-40mm;
Length: 400mm-8000mm;
2. Tapered Drilling Tools
Taper Bit: 7, 11, 12 degree Taper Button bits, Cross bits and Chisel bits;
Diameter: 20mm- 60mm ;
Taper Rod
Shank Type: H22x 108mm, Shank H25x159mm;
Length: 600-6000mm;
3. Threaded Rock Drilling Tools
Thread: H25,R25, R28, R32, R38, T38,T45, T51, ST58, GT60 Drill Bit;
Bit Body: Button Bit, Reaming Bit, Cross Type Bit, Retrac Button Bit.
| R38 button bit | ||||||
| Bit Dia. | Buttons and Size (mm) | Flushing Hole | Weight | |||
| mm | Front | Gauge | Front | Side | kg | |
| 1 | 76 | 3×11, 1×11 | 6×12 | 2 | - | 2.6 |
| 2 | 89 | 4×13, 1×13 | 8×13 | 4 | - | 3.3 |
| R32 button bit | ||||||
| Bit Dia. | Buttons and Size (mm) | Flushing Hole | Weight | |||
| 1 | 48 | 2×9 | 5×11 | 1 | 1 | 0.9 |
| 2 | 51 | 2×10 | 5×11 | 1 | 1 | 1 |
| 3 | 57 | 3×9 | 6×11 | 3 | - | 1.3 |
| 4 | 76 | 4×11 | 8×11 | 2 | - | 2.8 |
| R28 button bit | ||||||
| Bit Dia. | Buttons and Size (mm) | Flushing Hole | Weight | |||
| mm | Front | Gauge | Front | Side | kg | |
| 1 | 37 | 2×7 | 5×9 | 1 | 1 | 0.5 |
| 2 | 45 | 2×9 | 5×10 | 1 | 2 | 0.9 |
| 3 | 48 | 2×9 | 5×11 | 1 | 2 | 1 |
| R25 button bit | ||||||
| Bit Dia. | Buttons and Size (mm) | Flushing Hole | Weight | |||
| 1 | 32 | 1x8 | 3x8 | 1 | 1 | 0.24 |
| 2 | 33 | 2x7 | 5x7 | 2 | 1 | 0.26 |
| 3 | 41 | 2x7 | 5x9 | 1 | 1 | 0.42 |
| 4 | 42 | 2x8 | 5x9 | 1 | 1 | 0.43 |
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