Description
This chain does not have hard metal bits fused to the cutting edge and features a Crown drill head at the front, allowing you to cut roots or grind up a failed liner inside a pipe. While it is designed primarily for PVC pipes, the Crown drill head may be problematic when passing through a 90-degree bend, so we advise extra caution when working around bends. For a less aggressive option, please see our plain chains with the Croco drill head.
Built from 4mm (3/16″) thick chain, its added weight delivers powerful cutting performance against roots, tuberculation, scale, and failed liners. We recommend using this chain with 10mm (3/8″) and 12mm (1/2″) shafts.
The chain attaches to a flex shaft with set screws and all models come with three separate stainless steel chains of varying lengths.
It is manufactured from stainless steel to prevent oxidation and is adjustable. You can reduce its size by spreading the hubs further apart, allowing flexible adaptation to different pipe diameters. The chain uses centrifugal force to center itself inside the pipe, ensuring full contact with the inner wall for effective cleaning.
- Drill head type: Crown drill head (25mm / 0.98")
- Chain material: 4mm stainless steel links
- Set configuration: 3 chains per set
- Mounting type: Set screws
- Adjustable design: Yes (hub spacing adjustment)
- Pipe diameter range: 75mm (3") | 100mm (4") | 150mm (6") | 200mm (8")
- Shaft compatibility: 8mm (5/16") | 10mm (3/8") | 12mm (1/2")
Important: Using an imperial Allen key may strip the set screws. We recommend using a metric Allen key instead.
A screw set with metric Allen keys can be found here.
- Blockage removal
- Tree root removal
- Descaling
- Grind up a failed liner within a pipe
- Select the appropriate chain based on pipe diameter and shaft thickness.
- Attach the chain securely to the flex shaft using the set screws.
- Insert the tool into the pipe and gradually increase rotation speed.
- Allow the X-shaped teeth to break down roots, scale, or hardened blockages.
- Use controlled movement to avoid excessive force, especially in bends.
- Exercise caution around 90° bends due to the drill head's aggressive cutting action.
- Flush the pipe thoroughly after cleaning to remove debris.
We recommend using these chains with heavy-duty shafts (10mm [3/8"] and 12mm [1/2"]) as they are significantly more robust than the lightweight chains.
- This chain can be used with Picote Maxi Miller, Super Midi, Midi Cleaner and Ridgid K9-306 FlexShaft® Machine as they use 10mm (3/8") and 12mm (1/2") shafts.
(Please note that we do not claim to be producing original parts for any of the brands mentioned above).
Points to note