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 |
