T45 T51 T38 89MM Retract Button Drill Bit Suppliers
Product Description
Retract drill button bits are designed for rock drilling in fragmented, incomplete formations with variable rock conditions. The skirt body features multiple grooves and tails to facilitate bit retrieval in case of accidents. Like standard button bits, retract bits can be customized with different threads, head designs, and carbide shapes to match specific construction requirements.
We supply various retract drill bit types including R32, T38, T45, and T51 models to meet diverse drilling needs.
Available Thread Types
R25, R28, R32, R38, T38, T45, T51, GT60, ST58, ST68
Product Specifications
| Product Name |
Bit Diameter (mm) |
Bit Diameter (inch) |
Carbide Button Front (No. x mm) |
Carbide Button Gauge (No. x mm) |
Angle |
Flushing Hole |
Weight (kg) |
| T45 Retrac Bit |
70 |
2 3/4 |
3x11, 1x9 |
6x11 |
35° |
3 |
2.5 |
| 70 |
2 3/4 |
4x10, 1x10 |
8x11 |
35° |
4 |
2.5 |
| 76 |
3 |
4x11 |
8x11 |
40° |
2 |
3.2 |
| 76 |
3 |
4x11 |
8x12 |
35° |
2 |
3.2 |
| 76 |
3 |
3x11, 1x11 |
6x13 |
35° |
3 |
3.2 |
| 76 |
3 |
4x11, 1x11 |
8x11 |
35° |
4 |
3.2 |
| 76 |
3 |
4x11, 1x11 |
8x12 |
35° |
4 |
3.2 |
| 89 |
3 1/2 |
4x13 |
8x13 |
40° |
2 |
5.4 |
| 89 |
3 1/2 |
6x11 |
8x12 |
35° |
2 |
5.4 |
| 89 |
3 1/2 |
3x11, 2x11 |
8x13 |
35° |
3 |
5.4 |
| 89 |
3 1/2 |
4x11, 1x11 |
8x12 |
35° |
4 |
5.4 |
| 89 |
3 1/2 |
4x13, 1x13 |
8x13 |
35° |
4 |
5.4 |
Button Bit and Insert Types
Spherical Button Characteristics
- Universal button design
- Excellent wear resistance
- Optimal for hard ground conditions
- Recommended for 27000-48000PSI (180 to 320Mpa) applications
- Ideal for abrasive to very abrasive drilling conditions
Ballistic Button Characteristics
- Provides fast penetration rates
- Best suited for soft rock formations
- Recommended for 10000-20000PSI (70 to 140Mpa) applications
- Ideal for non-abrasive drilling conditions
