SPT Drive Rods are manufactured to connect with the SPT Split Tube Sampler and comply with the BS 1377: Part 9: 1990.
The rod O.D. is 54 mm with solid 1-1/2" B.S. Whitworth male and female tool joints on each end. The tool joints are friction welding with
the Rods and has a pair of spanner flats to facilitate handling
The rod weighs only 8.8 kg per meter but is both stronger and stiffer. It has four kinds of standard lengths, like 3.0m, 1.5m, 1.0m and 0.75m.