T60 115mm Thread Button Bit for Hard Rock Drilling Drill Bit with
Spherical Tungsten Carbide Inserts
Features:
Thread connection: R25, R28, R32, R38, T38, T45, T51, ST58, GT60
and ST68.
Carbide profile: Spherical, ballistic and parabolic.
Bit Faces: flat, concave, convex and drop-center, uniface.
Bits Diameters: 33mm-127mm
Bit body: standard and retrac
How to choose the bit type:
1. Soft rock drill bit
Uses: mainly used in non-crushing hardness, hardness F=8 or less,
non-abrasive rock, it’s more suitable to take new drop center face,
the bit diameter is small, with semi-ballistic buttons or ballistic
buttons, which will be easier to discharge debris to help improve
work efficiency, the tungsten carbide wear resistance is good.
2. Medium-hard rock drill bit
Uses: used in ordinary rock hardness, hardness F=8~14, non-abrasive
rock. It’s more suitable to take flat face, the bit diameter is
bit, with spherical buttons.
3. Hard rock drill bit
Uses: mainly used in the rock hardness above F=14, non-abrasive
rock, with bigger & spherical buttons, the tungsten carbide buttons
impact resistance and wear resistance is better, but the cost is
higher than the ordinary type as its bigger button diameter.
4. Abrasive rock drill bit
Uses: mainly used in high abrasive quartz rock, and the button
diameter & height is big, with more smooth face design in order to
exclude rock slag easily, with better impact resistance and
abrasion resistance.
5. Retractable drill bit
Uses: mainly used in rock with gap, and the rock formation
changeable, it’s mostly take drop center face with retract design,
and it’s more easily to disassemble the rods & bits.
Products Parameters:T60
| Dimensions D | Flushing hole(mm) | Buttons(mm) |
| mm | in | Front No Size | Gauge No Size | Front No Size | Gauge No Size |
| 102 | 4 | 4*11 | - | 6*13 | 8*14 |
| 115 | 4 1/2 | 3*13 | - | 7*14 | 9*16 |
| 92 | 3 5/8 | 3*11 | - | 6*12 | 9*12 |
| 115 | 4 1/2 | 3*13 | - | 6*14 | 9*16 |
| 127 | 5 | 3*14 | - | 9*14 | 9*16 |
| 127 | 5 | 3*14 | - | 10*14 | 9*16 |
| 102 | 4 | 4*11 | - | 6*13 | 8*14 |
| 115 | 4 1/2 | 3*13 | - | 7*14 | 9*16 |
| 92 | 3 5/8 | 3*11 | - | 6*12 | 9*12 |
| 115 | 4 1/2 | 3*13 | - | 6*14 | 9*16 |
| 127 | 5 | 3*14 | - | 9*14 | 9*16 |
| 127 | 5 | 3*14 | - | 10*14 | 9*16 |
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 |
