Mining Well Factory 76 89mm T45 threaded drill bits for Mining Rock Drilling Bits for Drifting and Tunneling
D Miningwell was founded in Quzhou city, China in 2001. For more than 22 years production and operation process. D Miningwell has been on the leading edge of mining equipment. We has its own drilling rig, DTH hammer, and drill pipe production workshops. provides a wide range of quality tools to mining, tunnelling, quarrying, water-well projects and urban transportation construction. D Miningwell is committed to providing customers with the most efficient and cost-effective drilling solution. Our team of drilling specialists are standing by to assist.
D Miningwell thread button drill bits are made by high quality alloy steel bar and tungsten carbides.
Through heat treatment, our drilling tools are tough enough to meet rock drilling demands and have the least
loss of energy while drilling the rocks. Besides, we can design customized thread button drill bits according to
different drilling application, and custom drill bits are applicable to drill soft rock, loose-medium rock and hard rock.
Rock Drill Thread Button Bits is suitable for R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, T60 rock drill rods use.
It have many thread. It’s widely used for hard rock(f=8~18) drilling use.
1) Thread connection: R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, GT602)Good quality material
3)Technology:hot-pressing or welding
Before Official Order, please confirm below informations:
(1) Thread Type
(2) Standard or Retrac
(3) Bit button shape (tip shape)–Spherical or Ballistic
(2) Bit face shape–Drop Center, Flat Face, Convex, Concave, etc…
| Technical Parameters | ||||||
| Model | Head Shape | Head Diameter | Length | Port Holes | Side Holes | Gauge Buttons |
| R32 | Flat Face | 51 | 130 | 3 | / | 6*Φ10 |
| R32 | Flat Face | 57 | 130 | 3 | / | 6*Φ10 |
| R38 | Flat Face | 64 | 140 | 3 | / | 6*Φ11 |
| R38 | Center Drop Face | 76 | 160 | 4 | / | 8*Φ11 |
| R38 | Center Drop Face | 89 | 170 | 4 | / | 8*Φ12 |
| T38 | Center Drop Face | 64 | 160 | 2 | / | 8*Φ9 |
| T38 | Flat Face | 70 | 160 | 3 | / | 6*Φ11 |
| T38 | Center Drop Face | 76 | 160 | 4 | / | 8*Φ11 |
| T38 | Center Drop Face | 89 | 170 | 4 | / | 8*Φ12 |
| T45 | Center Drop Face | 72 | 160 | 4 | / | 8*Φ11 |
| T45 | Center Drop Face | 76 | 160 | 4 | / | 8*Φ12 |
| T45 | Center Drop Face | 89 | 170 | 4 | / | 8*Φ12 |
| T45 | Center Drop Face | 102 | 180 | 4 | / | 8*Φ13 |
| T45 | Triangle Face | 89 | 170 | 4 | / | 8*Φ13 |
| T45 | Flat Triangle Face | 102 | 175 | 3 | / | 9*Φ13 |
| T45 | Flat Triangle Face | 115 | 175 | 3 | / | 9*Φ14 |
| T51 | Center Drop Face | 89 | 170 | 4 | / | 8*Φ12 |
| T51 | Center Drop Face | 102 | 180 | 4 | / | 8*Φ13 |
| T51 | Flat Face | 115 | 185 | 2 | 2 | 8*Φ14 |
| T51 | Center Drop Face | 127 | 185 | 4 | / | 8*Φ14 |
| T51 | Flat Triangle Face | 102 | 185 | 3 | / | 9*Φ13 |
| T51 | Flat Triangle Face | 115 | 185 | 3 | / | 9*Φ14 |
| T51 | Flat Triangle Face | 127 | 185 | 3 | / | 9*Φ14 |
| ST58 | Flat Face | 102 | 180 | 3 | / | 9*Φ13 |
| ST58 | Flat Face | 115 | 185 | 2 | 2 | 8*Φ14 |
| ST58 | Center Drop Face | 127 | 185 | 4 | / | 8*Φ14 |
| GT60 | Flat Triangle Face | 102 | 212 | 3 | / | 9*Φ13 |
| GT60 | Flat Triangle Face | 115 | 212 | 3 | / | 9*Φ14 |
| GT60 | Flat Triangle Face | 127 | 212 | 3 | / | 9*Φ16 |
| GT60 | Flat Triangle Face | 140 | 225 | 3 | / | 9*Φ16 |
| ST68 | Center Drop Face | 102 | 185 | 4 | / | 8*Φ14 |
| ST68 | Center Drop Face | 115 | 185 | 4 | / | 8*Φ14 |
| ST68 | Center Drop Face | 127 | 190 | 4 | / | 8*Φ14 |
| ST68 | Center Drop Face | 140 | 190 | 4 | / | 8*Φ16 |
