Description
RIDGID K-40 Sink Machine (71702) | Professional Drain Cleaning Power
The RIDGID K-40 Sink Machine (Model 71702) is a compact, professional-grade drain cleaning tool designed for clearing stubborn clogs in sinks, tubs, and small secondary lines. With its patented AUTOFEED® technology and contained, splash-resistant drum, the K-40 makes drain clearing clean, efficient, and safe. Ideal for plumbers, maintenance crews, and service professionals who need reliable power in tight spaces.
Features & Benefits
- Patented AUTOFEED® Technology: Two-way control advances and retrieves the cable with a lever push, keeping hands clean and minimizing job-site mess.
- Compact, Low-Profile Design: Sits flat on floors or countertops and easily tips back for fast access to sinks or tubs filled with water.
- Durable Drum Construction: Two-piece, twist-lock drum housing resists dents, corrosion, and moisture exposure for long-term performance.
- Premium C-13IC Cable: 5/16” x 35′ compression-wound inner core cable combines strength and flexibility to navigate tight bends without kinking.
- Quiet, Reliable Motor: The 1/8 HP induction motor provides consistent torque to clear tough buildup, soap residue, and small household blockages.
- Splash-Resistant Operation: Fully enclosed drum helps contain water, debris, and rotating cable for a cleaner work environment.
- Professional Usability: Includes RIDGID drain cleaning gloves and operator’s manual for safe, informed operation.
The RIDGID K-40 Sink Machine is engineered to deliver professional drain cleaning performance in compact spaces where larger machines can’t go. The specially designed guide hose and inner drum prevent cable flip-over and contain debris, helping reduce cleanup time while improving operator safety. This makes the unit ideal for job sites where cleanliness, precision, and speed matter.
The low-profile body allows the machine to sit securely on a flat surface, and its ergonomic layout helps users maintain control even in tight bathrooms or workspaces. The enclosed drum keeps wastewater from splashing or spraying, a key advantage when working in finished environments or customer homes.
The combination of a quiet induction motor and strong inner-core cable enables the K-40 to clear lines up to 1-1/2″, making it the perfect choice for daily service calls involving sinks, tubs, showers, and similar fixtures. With corrosion-resistant materials, a two-piece drum for easy maintenance, and professional-grade components, this machine is built for consistent, repeated use.
In summary, the key benefit is efficiency — the K-40 provides powerful, contained drain cleaning with minimal mess, allowing service professionals to work faster and more cleanly.
The RIDGID K-40 Sink Machine is ideal for:
- Kitchen sink drains with grease buildup or food debris
- Bathroom sinks clogged with hair, toothpaste, or residue
- Tub and shower drains where soap scum and hair commonly restrict flow
- Small secondary lines up to 1-1/2” in residential or light commercial settings
- Maintenance teams that require fast, controlled, low-mess cable feeding
Why Choose The RIDGID K-40 Sink Machine?
The RIDGID K-40 Sink Machine stands out in its class thanks to its enclosed drum design, patented AUTOFEED® system, and durable, kink-resistant inner-core cable. Unlike manual hand spinners or open-drum cleaners, the K-40 keeps the work area cleaner by containing water and debris. Its compact footprint and reliable 1/8 HP motor provide consistent power without excessive vibration or noise.
Compared to similar sink machines, the K-40 emphasizes operator comfort, cleanliness, and longevity. Professionals choose this model because it reduces cleanup time, enhances safety, and offers dependable performance across a wide range of small-line applications.
FAQ
What size lines can the K-40 Sink Machine clean?
The K-40 is designed for sink, tub, and small secondary drains up to 1-1/2” in diameter.
Does it include a drain cleaning cable?
Yes. The K-40 Sink Machine includes a 5/16″ x 35′ C-13IC inner-core cable already installed inside the drum.
Is the K-40 easy to maintain?
Yes. The two-piece twist-lock drum makes cleaning or cable replacement easy, and the enclosed design helps protect internal components.
Equip yourself with dependable, professional-grade drain cleaning power with the RIDGID K-40 Sink Machine. Its compact design, enclosed drum, and AUTOFEED® technology make every service call cleaner and more efficient. Add to cart today to upgrade your drain cleaning capabilities and deliver exceptional results for every customer.


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