T45 Retractable Drill Bit with Spherical Buttons Suitable for
Abrasive and Hard Formations
Retractable rock drill button bit is well known for its high wear
resistance on medium-hard to 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.
Suitable for powerful percussive drills and top hammers with high
speed drifter, such as Atlas Copco 282 rocket boomer, Atlas Copco
352 rocket boomer jumbo,AtlasCopcoD7roc, Furukawa HCR 1200, Tamrock
and Ingersoll Rand ECM660,the products are widely used in bench and
production drilling, extensional drilling, our products with
comparative advantages of the more prominent cost-effective as the
famous brand in the world, our products have been recognized as
high-quality brand of rock-drilling tools made in China.
How to choose the bit tooth type:
Spherical buttons: The height of exposed teeth is low, mainly used
in the very hard rock formation above F14, to improve wear
resistance, to prevent the situation of debris, it should take
lower drilling speed.
Ballistic buttons: It can expose more height of buttons, mainly
used in soft rock and ordinary rock below F12, with quicker
drilling speed, but encountered hard rock, very easily to happen
buttons debris phenomenon.
Product Advantage:
• Recommended for eliminating hole deviation
• Widely used drifting and tunneling
• Bit face design is ideal for medium-hard to hard abrasive rock
Specification of other Button Drill Bits:
| Thread Button Bit | Diameter | Carbide size(mm) | Flushing hole | Weight |
| mm | in | Front | Gauge | Front | Side | (kg) |
| Qty×size | Qty×size |
| R25 (1") | 33 | 1 2/7 | 2×7 | 5×7 | 1 | 1 | 0.36 |
| 35 | 1 3/8 | 2×7 | 5×8 | 1 | 1 | 0.44 |
| 38 | 1 1/2 | 2×7 | 5×9 | 1 | 1 | 0.56 |
| 41 | 1 5/8 | 2×8 | 5×9 | 1 | 2 | 0.61 |
| 45 | 1 3/4 | 2×8 | 5×10 | 1 | 2 | 0.78 |
| 48 | 1 7/8 | 2×9 | 5×11 | 1 | 2 | 0.8 |
| 51 | 2 | 2×10 | 5×11 | 1 | 2 | 1.18 |
| 57 | 2 1/4 | 2×10 | 5×12 | 1 | 2 | 1.26 |
| R28 (1 1/8") | 35 | 1 3/8 | 2×7 | 5×8 | 1 | 1 | 0.44 |
| 38 | 1 1/2 | 2×7 | 5×9 | 1 | 1 | 0.56 |
| 41 | 1 5/8 | 2×8 | 5×9 | 1 | 2 | 0.61 |
| 45 | 1 3/4 | 2×8 | 5×10 | 1 | 2 | 0.78 |
| 48 | 1 7/8 | 2×9 | 5×11 | 1 | 2 | 0.8 |
| 51 | 2 | 2×10 | 5×11 | 1 | 2 | 1.18 |
| 57 | 2 1/4 | 2×10 | 5×12 | 1 | 2 | 1.26 |
| R32 (1 1/4") | 41 | 2 5/8 | 2×8 | 5×9 | 1 | 2 | 0.65 |
| 43 | 1 2/3 | 2×8 | 5×10 | 1 | 2 | 0.72 |
| 45 | 1 3/4 | 2×9 | 5×10 | 1 | 2 | 0.82 |
| 48 | 1 7/8 | 2×10 | 5×10 | 1 | 2 | 0.92 |
| 51 | 2 | 2×10 | 5×11 | 1 | 2 | 1.24 |
| 57 | 2 1/2 | 2×10 | 5×12 | 1 | 2 | 1.35 |
| R/T38 (1 1/2") | 64 | 2 1/2 | 3×11 | 6×12 | 2 | 1 | 1.62 |
| 70 | 2 3/4 | 4×10 | 8×10 | 2 | 1 | 1.98 |
| 76 | 3 | 4×11 | 8×12 | 2 | 1 | 2.28 |
| 89 | 3 1/2 | 6×11 | 8×12 | 2 | 2 | 3.32 |
| T45 (1 3/4") | 70 | 2 3/4 | 4×10 | 8×10 | 2 | 1 | 2.24 |
| 76 | 3 | 4×11 | 8×12 | 2 | 1 | 2.46 |
| 89 | 3 1/2 | 6×12 | 8×14 | 2 | 2 | 3.52 |
| 102 | 4 | 7×12 | 8×14 | 2 | 2 | 4.46 |
| 115 | 4 1/2 | 8×12 | 8×14 | 2 | 2 | 6.68 |
| T51 (2") | 76 | 3 | 4×12 | 8×12 | 2 | 1 | 3.62 |
| 89 | 3 1/2 | 6×12 | 8×14 | 2 | 2 | 4.48 |
| 102 | 4 | 7×12 | 8×14 | 4 | 1 | 5.26 |
| 115 | 4 1/2 | 8×12 | 8×14 | 4 | 1 | 7.62 |
| 127 | 5 | 9×12 | 8×16 | 4 | 1 | 8.58 |
| ST58 (2 1/4") | 89 | 3 1/2 | 6×12 | 8×14 | 2 | 2 | 5.46 |
| 102 | 4 | 6×12 | 8×14 | 2 | 2 | 6.18 |
| GT60 (2 3/8") | 102 | 4 | 6×13 | 8×14 | 4 | - | 7.4 |
| 115 | 4 1/2 | 7×14 | 9×16 | 3 | - | 9 |
| ST68 (2 3/4") | 102 | 4 | 6×14 | 8×16 | 2 | 2 | 8.6 |
| 115 | 4 1/2 | 6×14 | 9×16 | 3 | - | 11.2 |
