Description
The Flexible Shaft Without Sleeve is designed for drain cleaning, blockage removal and pipe descaling.
This item includes flexible shaft only, without the friction rings or the protective sleeve. Should you be looking for a complete flexible shaft with a sleeve, protective rings, shaft lock and spring, then we recommend that you check out our Flex Shaft Set.
Shaft thickness
The thickness of the shaft depends on the amount of bends that you would like to pass through. The more bends you need to get through, the thinner the shaft should be. However, the thinner the shaft is, the less torque the shaft delivers.
- The 6mm (1/4″) flexible shaft is most suitable for 38mm-50 mm (1.5″-2″) pipes and can manage to get through multiple bends, but has limited torque, so it is more suitable for light blockage removal than descaling.
- The 8mm (5/16”) flexible shaft is our second most flexible shaft. It has the ability to pass through multiple bends, and has more torque than the 6mm (¼). This shaft is most suitable for pipes with a diameter of 75mm (3”) to 100mm (4”), and will work with blockage removal chains as well as descaling chains, but is still best suited for soft blockages.
- The 10mm (3/8″) flexible shaft is less flexible than the 8mm (5/16″) shaft, and yet more flexible than the 12mm (½”). This shaft will navigate through fewer bends than the 8mm (5/16″) shaft, but will offer the user similar torque to the 12mm (1/2″). It is designed for both hard blockages and descaling tasks.
- The 12mm (½”) flexible shaft is our most rigid shaft. This shaft is popular for failed liner removal since it offers the highest torque ratio. The shaft is perfect for descaling and blockage removal of lines ranging from 100mm (4”) to 200mm (8”).
Shaft length
Most clients insist on getting the longest shaft possible. Yet, on average, most of the blockages occur within 20 meters (65ft), and most clean outs are located 25 meters (80ft) apart. When you choose one of the recommended shafts, please be sure to keep this in mind.
The longer your shaft is, the less torque is delivered to the other end, since there is a slight loss in energy passed through the shaft.
Consider purchasing two shorter shafts with a shaft-to-shaft connector so that you have less to carry around on site, and when you need extra length, you could simply connect an additional shaft. You could also connect a thinner shaft to a thicker shaft to give you flexibility when needed as well as the torque to drive the thinner shaft.
Quality
The lifespan and performance of a flexible shaft depend entirely on its internal construction.
Our shafts are made from spring-grade steel wire, wound around a single mandrel in opposing directions. Each successive layer is wound onto the shaft at an opposing pitch angle. This design allows them to deliver equal torque in both rotational directions.
Shaft shrinkage
During manufacturing, shafts are produced straight, then wound onto large spools before cutting and assembly.
This means you may notice shrinkage of about 75mm (3″) on each end during first use, especially on the drill side.
This is perfectly normal since the shaft is subjected to the stresses of multiple bends and torque for the first time. Once the internal wires settle, the shaft stabilizes permanently.
When shrinkage appears, simply cut off the affected section with an angle grinder and reconnect your tools.
Please do not weld the ends of the shaft after cutting. While many people online may advise doing so, it’s not good for the shaft. It is made from spring-grade steel, which is tempered at a specific temperature and cooled at a specific rate to give it its spring-like properties. Welding changes the cooling process and alters the steel’s characteristics.





