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MSD supplies DTH drill pipes from 76–178 mm OD with API REG and NC thread options, 6.5–10 mm wall thicknesses, and standard 3000 mm lengths.
MSD supplies DTH drill pipes in confirmed outside diameters from 76 to 178 mm (3 to 7 inch). The listed configurations include wall thicknesses from 6.5 to 10 mm, API REG and NC thread options, flushing-hole diameters from 32 to 60 mm, and a standard listed length of 3000 mm. Wrench, flats, and weight vary by diameter, wall thickness, and thread configuration, so the exact specification row should be confirmed before ordering.
| Diameter / OD (mm/inch) | Wall Thickness (mm) | Thread Type | Flushing Hole Dia. (mm) | Wrench | Flats | Length (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 76(3) | 6.5 | API 2 3/8REG | 32 | 57 | 45 | 3000 | 40 |
| 76(3) | 8.5 | API 3 3/8REG | 32 | 57 | 45 | 3000 | 48 |
| 89(3 1/2) | 6.5 | API 2 3/8REG | 32 | 70 | 45 | 3000 | 48 |
| 89(3 1/2) | 8.5 | API 2 3/8REG | 32 | 70 | 45 | 3000 | 58 |
| 89(3 1/2) | 6.5 | NC26 | 40 | 70 | 45 | 3000 | 48 |
| 89(3 1/2) | 8.5 | NC26 | 40 | 70 | 45 | 3000 | 58 |
| 102(4) | 6.5 | API3 1/2REG | 45 | 83 | 51 | 3000 | 56 |
| 102(4) | 8.5 | API3 1/2REG | 45 | 83 | 51 | 3000 | 67 |
| 102(4) | 6.5 | NC31 | 45 | 83 | 51 | 3000 | 56 |
| 102(4) | 8.5 | NC31 | 45 | 83 | 51 | 3000 | 67 |
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Read MoreMSD supplies DTH drill pipes in confirmed outside diameters of 76, 89, 102, 114, 127, 133, 140, 146, 152, 168, and 178 mm, covering an overall listed range of 76–178 mm (3–7 inch). Related market terminology may include DTH drill rods, DTH drilling pipes, and DTH drilling tubes.
The listed configurations include wall thicknesses from 6.5 to 10 mm, selected API REG and NC thread connections, flushing-hole diameters from 32 to 60 mm, and a listed length of 3000 mm.
The overall range does not mean that every intermediate outside diameter is available or that every wall thickness and thread combination is offered for every pipe size.
The complete specification should therefore be reviewed rather than selecting a DTH drill pipe by outside diameter alone.
The current product table is organized into four size groups.
3–4 Inch DTH Drill Pipes — Listed in 76, 89, and 102 mm outside diameters.
4½–5 Inch DTH Drill Pipes — Listed in 114 and 127 mm outside diameters.
5¼–6 Inch DTH Drill Pipes — Listed in 133, 140, 146, and 152 mm outside diameters.
6⅝–7 Inch DTH Drill Pipes — Listed in 168 and 178 mm outside diameters.
These size groups organize the confirmed parameter rows. They do not mean that every pipe within a group uses the same wall thickness, thread connection, flushing-hole diameter, or weight.
The 76, 89, and 102 mm DTH drill pipes are listed with 6.5 and 8.5 mm wall thicknesses. The confirmed rows include selected API REG and NC thread connections.
Flushing-hole diameters in this group range from 32 to 45 mm, while listed weights range from 40 to 67 kg. The exact thread, flushing-hole diameter, wrench dimension, flats dimension, and weight should be checked in the corresponding parameter row.
The 114 and 127 mm DTH drill pipes are listed with 6.5 and 8.5 mm wall thicknesses. The confirmed rows include selected API REG and NC thread connections.
Flushing-hole diameters are listed at 45 or 60 mm, and listed weights range from 63 to 86 kg. The available thread and wall-thickness combination varies by outside diameter.
The 133, 140, 146, and 152 mm DTH drill pipes use different listed wall thicknesses of 8.5, 9.2, or 10 mm. The confirmed rows in this group use selected API REG thread configurations.
Flushing-hole diameters are listed at 45 or 60 mm, while listed weights range from 101 to 113 kg. Each outside diameter should be checked against its exact parameter row.
The 168 and 178 mm DTH drill pipes are both listed with a 10 mm wall thickness and a 60 mm flushing-hole diameter.
The 168 mm configuration is listed with an NC thread, while the 178 mm configuration is listed with an API REG thread. Their listed weights are 132 and 140 kg respectively.
The confirmed flushing-hole diameters range from 32 to 60 mm. Listed wrench dimensions range from 57 to 159, and listed flats dimensions range from 45 to 55.
All confirmed rows show a listed pipe length of 3000 mm. The listed weights range from 40 to 140 kg and vary by outside diameter, wall thickness, and thread configuration.
These values should be checked as one complete specification. A similar outside diameter does not confirm the same connection, internal passage, handling dimension, or weight.
Outside diameter alone does not confirm that a DTH drill pipe will match the existing drilling system.
The required thread must be checked against the rig, rotation head, adapter, hammer connection, or existing drill string. Wall thickness, flushing-hole diameter, and required length should also be reviewed together with the operating requirements.
For replacement orders, provide the current pipe specification, thread designation, drawing, dimensions, and clear photographs of both connection ends before the configuration is confirmed.
These DTH drill pipe configurations may be reviewed for mining, quarrying, water-well drilling, construction, foundation, and infrastructure projects where the pipe specification and complete DTH drilling system are suitable.
Final selection should be based on the drill-rig and rotation-head arrangement, adapter or hammer connection, required outside diameter, thread type, wall thickness, flushing-hole diameter, hole depth, drill string, and operating conditions.
The current parameter table does not assign a particular pipe specification to a specific application or guarantee a particular drilling result.
To confirm a suitable DTH drill pipe, provide the following information:
Outside Diameter — Required pipe outside diameter in millimeters or inches.
Thread Type — Exact thread designation required at the connection.
Wall Thickness — Required wall thickness or the current pipe specification.
Flushing-Hole Diameter — Required internal flushing-hole diameter.
Required Length — Required pipe length and the current listed length when replacing an existing pipe.
Connection Information — Rig, rotation head, adapter, hammer connection, or complete drill-string information.
Working Conditions — Drilling application, hole depth, and operating conditions.
Current Product Information — Existing pipe model, specification, thread marking, drawing, dimensions, or clear photographs.
Order Requirement — Required quantity.
For replacement orders, the confirmed thread designation, connection dimensions, current pipe details, and mating equipment should take priority over the general pipe-size group.
MSD is a China-based manufacturer of rock drilling tools supplying DTH hammers, DTH drill bits, DTH drill pipes, drilling components, and related products.
MSD focuses on reliable quality, correct tool selection, and technical support. For DTH drill pipe requirements, the objective is not only to supply the requested outside diameter, but also to review the thread connection, wall thickness, flushing passage, pipe length, drill string, and connected equipment, helping reduce mismatch risk, unnecessary downtime, and the overall drilling cost per meter.
Technical content reviewed by MSD Engineering Team. | MSD — 23+ years of rock drilling tools manufacturing expertise | ISO 9001 Certified | Exporting to 40+ countries
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