Metric Series Parallel Threaded Drill Rod
Drill rods for conventional rotary drilling in metric measurements are manufactured in diameters 33, 42, 50 and 60 mm. All rods are manufactured from high quality heat-treated cold-drawn material. They have a high wear resistance and excellent finish.
The rods are manufactured from smooth parallel wall tube, with separate couplings. The couplings are manufactured from alloy steels of high strength and toughness. Standard lengths are 3.0m, 1.5m and 0.5m.
CR42 and CR50 are also available in aluminium.
|Specification||Rod Type (Steel)|
|Outside Diameter (mm)||33.5||42.0||50.0||60.0|
|Inside Diameter (mm)||23.7||32.2||37.0||48.0|
|Coupling I.D. (mm)||15.0||23.0||23.0||25.0|
|Threads per inch||4||4||3||4|
|Specification||Rod Type (Aluminium)|
|Outside Diameter (mm)||43.2||53.3|
|Inside Diameter (mm)||30.8||37.5|
|Coupling I.D. (mm)||22.0||22.0|
|Threads per inch||4||3|