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The RIDGID K-750 drum machine with AUTOFEED control clears 4–8 inch drain lines up to 200 ft, combining brute power with efficient cable feeding.
Categories : Tools & Hardware
SKU : WOR-TOO-1106
The RIDGID K-750 with AUTOFEED control is a professional drain cleaner built for heavy-duty blockages in commercial and residential systems. Its C-100 3/4-inch Inner Core cable runs up to 100 feet and tackles 4-to-8-inch lines, making it a favorite among plumbers and maintenance pros.
The AUTOFEED system powers the cable in and out of the line at up to 20 feet per minute, so you can clear tough stoppages faster and with far less physical effort. A corrosion-resistant drum keeps the cable clean and ready, while the pneumatic foot switch gives you effortless control of the 500W induction motor.
If your AUTOFEED is not feeding smoothly, check for cable kinks, misaligned rollers, or debris in the feed mechanism. Keep the cable properly wound on the drum and ensure the drum is locked in position. Regular inspection and cleaning of the feed rollers solve most slipping issues. Consult the RIDGID 42007 parts diagram for exact adjustments and part numbers.
The drum is designed for quick cable removal, so you can replace or swap cables on-site. The C-100 Inner Core cable is maintenance-friendly and available in standard lengths. Refer to the K-750 cable replacement guide in the manual for step-by-step instructions.
The wide handle, large wheels, and kickstand make loading and unloading from a service vehicle straightforward. The drum resists dents and harsh chemicals, giving you a machine that keeps working season after season.
AUTOFEED control powers cable in/out at up to 20 ft per minute for faster drain clearing.
3/4 in x 100 ft Inner Core cable handles heavy-duty blockages in 4–8 in lines.
500W induction motor with pneumatic foot switch gives smooth, reversible power at 200 RPM.
Corrosion-resistant drum withstands harsh drain chemicals and job-site abuse.
Large wheels, handle, and kickstand make transport and loading easy.
Model: K-750 (Catalog 42007)
Motor: 500W induction motor
Speed: 200 RPM
Feed Rate: Up to 20 ft/min / 6 m/min
Foot Switch: Pneumatic
Cable Length: 100 ft / 30.5 m
Product Type: Drain Cleaning Machine
Cable Diameter: 3/4 in / 20 mm
Line Size Capacity: 4-8 in / 100-200 mm
Seller: Workbench World
MPN: K-750 (Catalog 42007)
The AUTOFEED lever engages a drive mechanism that automatically advances and retrieves the cable. This not only saves your back but also helps the cutter stay on the blockage more effectively. Maintaining the feed rollers and keeping the cable bone-dry is the key to reliable autofeed operation.
The K-750 uses the C-100 Inner Core cable. Over time, cables can wear, stretch, or become damaged. The quick-release drum simplifies cable changes. Match the cable length to the distance of the line you service—100 feet covers most residential and light commercial runs.
The 42007 parts diagram identifies every major assembly: feed rollers, drum, motor base, foot switch, and handle. Keep a printed copy in the case for quick reference when ordering parts or performing maintenance.
Always wear gloves and safety glasses when operating the K-750. Never run the cable into a line without verifying the drum is locked. For technical support, contact our team—we're here to help you keep your equipment running.
It is designed for heavy-duty blockages in main lines, branch lines, and basic household drains from 4 to 8 inches.
A lever engages the feed mechanism, powering the cable in and out of the drain at up to 20 feet per minute, saving time and reducing fatigue.
Yes, the cable is designed for quick removal and replacement. Consult the parts diagram for step-by-step instructions.
Check for cable kinks, incorrect drum alignment, or wear on the feed rollers. Proper cable tension is essential. See troubleshooting section in the manual.
The K-750 is heavier duty with a larger cable and autofeed, while the K-400 is for smaller lines.
I've been clearing drains for 35 years and this K-750 is a workhorse. The Autofeed saves my back. It powers through 4 inch lines like nothing. The 100 foot cable is plenty for most jobs. I've used it every day for a month and it hasn't missed a beat.
It's heavy but it does the job. The auto feed takes some getting used to. Cleared a clogged main line in no time.
This machine is a beast. It chewed through a root clog that my previous auger couldn't touch. The auto feed is brilliantly simple. My guys can operate it with minimal training. It's paid for itself already.
High quality drum.
I like the safety features. The foot switch is convenient. The cable doesn't kink like others.
It's expensive but worth it. The autofeed works well. Just make sure you have a helper to move it.
Works like a pro.
Rented one before and bought this for my building. It cleared all the drains in our complex. The cable is long enough for most runs.
It's powerful but very heavy. The autofeed jammed once. Not for a beginner.
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