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The RIDGID 238-P powered soil pipe cutter (42878) cuts up to 8-inch cast iron soil pipe with a 1/2-inch impact driver or 4-inch pipe manually with the included ratchet.
Categories : Tools & Hardware
SKU : WOR-TOO-819
The RIDGID 238-P powered soil pipe cutter, catalog number 42878, is the heavy-duty answer for plumbers and contractors who cut cast iron soil pipe every day. It runs off a 1/2-inch square drive impact driver for up to 8-inch pipe (minimum 200 ft-lbs) or manually with the included ratchet for up to 4-inch pipe. The compact, lightweight frame fits overhead, in-wall, and below-grade spaces where a full-size soil pipe cutter won't go.
To power the 238-P through 8-inch soil pipe, you need a 1/2-inch square drive impact driver rated at 200 ft-lbs or higher. The impact driver's square drive engages the cutter's drive hub; the tool's chain wraps the pipe, and the rotating chain tightens to score and break the cast iron cleanly. With the included ratchet, the same cutter handles up to 4-inch pipe manually.
The outward-facing chain hooks lay flat on the pipe, so latching the chain around a cast iron stack is quick and secure, even when you're working overhead or reaching into a crawlspace. Two-directional operation lets you score the pipe on both sides for a clean, controlled break.
Chains wear with use. The 238-P is designed with a serviceable chain assembly, so you can replace the chain without buying a whole new cutter. For the correct RIDGID replacement chain and fitting guidance, contact Workbench World support.
Dual-powered operation: 1/2-inch impact driver or included ratchet
Cuts up to 8-inch soil pipe powered; 4-inch manually
Requires 200 ft-lbs minimum impact driver for full capacity
Compact, lightweight design fits overhead and below-grade spaces
Articulating chain hooks simplify setup; two-directional scoring makes clean cuts
Chain: Included, articulating hooks
Model: 238-P
Weight: Approx. 10.5 lbs
Operation: Dual-direction scoring
Power Source: Impact driver or ratchet
Product Type: Powered Soil Pipe Cutter (Chain Pipe Cutter)
Drive Requirement: 1/2-inch square drive, 200 ft-lbs minimum
Manual Cutting Capacity: Up to 4-inch pipe
Powered Cutting Capacity: Up to 8-inch soil pipe
Seller: Workbench World
MPN: 238-P
Chain cutters use leverage instead of spin. The 238-P wraps a chain around the pipe; as the drive rotates, the chain tightens and presses cutting wheels into the pipe, scoring a clean line that lets the pipe break square.
For large pipe or long days, an impact driver makes the cut faster and with less effort. For a single 4-inch cut in a tight corner, the included ratchet keeps things simple and doesn't require a charged battery.
Always match the drive tool to the job: a 1/2-inch impact driver rated at 200 ft-lbs or higher for 6-8 inch pipe, and the ratchet for smaller cuts or fine control on the final split.
Use a 1/2-inch square drive impact driver rated at 200 ft-lbs or higher to cut up to 8-inch soil pipe. For smaller work, the included ratchet handles up to 4-inch pipe manually.
Yes, the 238-P is designed with a serviceable chain assembly. Contact Workbench World support for the correct RIDGID replacement chain.
It's built for cast iron soil pipe. The chain cutter scores the pipe, then the break is clean and square.
Tighten the chain snugly around the pipe, then rotate the cutter in alternating directions to score the full circumference before finishing the cut. This produces a cleaner break with less effort.
The 238-P has a compact, lightweight frame that fits tight overhead and below-grade spaces; the chain wraps closely around the pipe, so clearance requirements are minimal.




I used this to cut 4-inch cast iron soil pipe and it was a breeze. Attached it to my impact driver and it sliced through in about 30 seconds. The chain wraps around the pipe easily, and the tension is simple to set. The included ratchet works for manual use, though slow. The cutter leaves a clean edge, no jagged pieces. This is a great tool for any plumber.
It does the job, but it's not something you'll use every day. The chain is heavy duty and the cut was clean.
Cuts cast iron FAST.
I've used this on 3-inch and 4-inch pipe. The chain is sturdy and the clamping mechanism is secure. With an impact driver, it cuts quickly, but I had to use the manual ratchet for one cut and it took time. Still, it produces a straight, clean cut. I'm glad I bought it instead of renting.
This cutter saved me on a job when we couldn't get a sawzall in the tight space. The chain wraps and tightens around the pipe, and the driver did the work. It did wear the chain a bit after several cuts, but that's expected. The ratchet function is a nice backup. It's a specialized tool, but worth it for any serious plumber.
Works as described. It takes a little practice to get the chain tight enough, but it cuts well. Good quality.
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Phone: +1 (216) 555-0174
Email: support@workbenchworld.us
Address: 4820 Industrial Parkway, Cleveland, OH 44135, United States