Products > Drill Rods > METRIC Drill Rods
METRIC drill rods
Technodrill metric drill rods are manufactured from high quality cold drawn seamless steel tubes and include a separate coupling made of high tensile, heat treated alloy steel. They are in accordance with ISO 3552-1.1992. Straightness is more than 1:1800mm.
Suitable for conventional drilling and available in sizes 50, 42 & 33.5mm.
TECHNICAL SPECIFICATIONS
| SIZE |
Rod O.D. A (mm) |
Rod I.D. B (mm) |
Coupling I.D. C (mm) |
Threads per inch (T.P.I.) |
|---|---|---|---|---|
| 50 MM | 50.0 | 37.0 | 22.0 | 3 |
| 42 MM | 42.0 | 32.2 | 22.0 | 4 |
| 33.5 MM | 33.5 | 23.7 | 15.0 | 4 |
The standard effective lengths are 3.0 & 1.5 meters. Other lengths may be manufactured upon request.
All rods have right hand threads. Left hand threads can be manufactured if requested.
ACCESSORIES:
The full range of spare parts and accessories for metric drill rods is available:
- rod couplings
- water swivels
- hoisting plugs
- recovery/fishing equipment (recovery taps, bell taps) etc.
