Drifting and tunnelling tools include rods, shank adapters, couplings, and bits. We offer specialized thread types designed for high performance in various geological conditions. These tools are widely compatible with button bits, cross bits, and reaming products.
| Type | Carbide Gauge | Carbide Front | Dimensions D | Flushing Hole | ||||
|---|---|---|---|---|---|---|---|---|
| No. | mm | No. | mm | mm | inch | Front | Side | |
| Standard | 8 | 10 | 4 | 10 | 64 | 2 1/2" | 2 | 0 |
| Standard | 8 | 11 | 6 | 11 | 76 | 3" | 2 | 0 |
| Standard | 8 | 12.7 | 6 | 12.7 | 89 | 3 1/2" | 2 | 0 |
| Standard | 8 | 14 | 6 | 14 | 102 | 4" | 2 | 0 |
| Drop Center Models | ||||||||
| Drop Center | 6 | 10 | 3/1 | 10/9 | 64 | 2 1/2" | 3 | 0 |
| Drop Center | 6 | 11 | 3/1 | 11/9.5 | 70 | 2 3/4" | 3 | 0 |
| Drop Center | 6 | 12.7 | 3/1 | 11/9.5 | 76 | 3" | 3 | 0 |
| Drop Center | 6 | 14 | 3/2 | 12.7/9.5 | 89 | 3 1/2" | 3 | 0 |
| Type | Carbide Gauge | Carbide Front | Dimensions D | Flushing Hole | ||||
|---|---|---|---|---|---|---|---|---|
| No. | mm | No. | mm | mm | inch | Front | Side | |
| T38 Bit | 6 | 10 | 3 | 10 | 57 | 2 1/4" | 3 | 1 |
| T38 Bit | 6 | 11 | 3 | 11 | 64 | 2 1/2" | 3 | 1 |
| T38 Bit | 6 | 11 | 3 | 9.5 | 57 | 2 1/4" | 1 | 2 |
| T38 Bit | 6 | 12.7 | 3 | 11 | 64 | 2 1/2" | 1 | 2 |
| T38 Bit | 6 | 12.7 | 3 | 12.7 | 76 | 3" | 3 | 1 |
| T38 Bit | 6 | 14 | 4 | 14 | 89 | 3 1/2" | 3 | 0 |
A: Our drill bits are manufactured using high-grade Carbon Steel and high-quality Tungsten Carbide (YK05 or T6) to ensure maximum wear resistance and durability.
A: We support a wide variety of threads including R22, R25, R28, SR28, R32, SR35, R35, R38, T38, T45, T51, ST58, GT60, and ST68.
A: The diameters for our drifting and tunnelling bits range from 38mm up to 254mm, catering to various project specifications.
A: To ensure safety during transit, we pack our products in sturdy wooden cases or heavy-duty cartons, depending on the item size and quantity.
A: Our production facility is capable of producing approximately 500,000 PCS per month to meet large-scale industrial demands.
A: Yes, our production adheres to international standards and is certified under ISO 9001:2000 and ISO 9001:2008 quality management systems.