RIDGID K9-306 FlexShaft Machine | 3″–6″ Pipe Cleaner (Model 66593)

Description

RIDGID K9-306 FlexShaft Machine | 3″–6″ Pipe Cleaner (Model 66593)

The RIDGID K9-306 FlexShaft Machine (Model 66593) is a professional drain cleaning solution for 3″–6″ pipes. With a 125′ x 3/8″ cable, wall-to-wall chain knockers, and an I-Clutch™ powered internal motor, it removes grease, scale, and roots quickly—while allowing simultaneous camera inspection for faster, more accurate jobs.

Features & Benefits

• Wall-to-Wall Cleaning: Chain knockers expand to full pipe diameter for thorough descaling and debris removal in 3″–6″ lines.
• Productivity Built-In: One-step foot switch activation, fast setup, and enclosed drum design reduce mess and downtime between calls.
• I-Clutch™ Power: A 1.5 HP internal universal motor with I-Clutch™ technology delivers power and longevity while helping protect the tool and cable.
• 125′ Reach: Comes standard with 125′ (38 m) of 3/8″ (10 mm) cable to tackle long residential and commercial runs.
• Camera-Friendly Operation: Clean while you inspect with a SeeSnake® camera, confirming results in real time and documenting deliverables for customers.
• Jobsite Mobility: A telescoping handle, multiple wheels, and grab points simplify loading, unloading, and transport.
• Cleaner Work Area: Fully enclosed drum helps contain debris and splatter for a neater setup and faster cleanup.
• Accessory Ecosystem: Compatible with a full range of chain knockers, brushes, and leaders to match pipe condition and material.

Detailed Description

The RIDGID K9-306 FlexShaft Machine is purpose-built for professional drain cleaning technicians who need speed, control, and documentation in mid-diameter lines. Its flexible shaft spins inside a durable sheath, powering chain knockers that expand to clean pipe wall to wall. This action removes grease, heavy scale, mineral deposits, and root intrusions without relying on harsh chemicals.

At the core of the system is a 1.5 HP (1119 W) internal universal motor with I-Clutch™ technology. The clutch helps protect critical components under load, extending life and delivering consistent torque through challenging buildups. Engagement is simple and safe via a foot switch, so you can focus on controlling the tool and monitoring line condition.

Because the cable is housed inside an enclosed drum, setup is clean and efficient. The sealed system helps contain debris and reduces splatter, which is especially valuable in finished spaces or commercial interiors. After the job, the same design makes tear-down and transport quicker—more jobs per day, less cleanup.

A standout advantage is camera-ready cleaning. The K9-306 allows you to operate a SeeSnake® inspection camera in the line while the chain knockers are working. That means real-time visibility to confirm debris removal, identify defects, and document results for customers and stakeholders. In practice, fewer guesswork passes and faster sign-off translate to higher profitability.

Transport is equally dialed-in. The unit’s telescoping handle, multi-wheel layout, and integrated grab points make it straightforward to load into vans, move up stairs, or maneuver in mechanical rooms. With 125′ (38 m) of 3/8″ (10 mm) cable, the K9-306 has the reach to service common laterals and branch lines in commercial and residential settings.

In summary, the RIDGID K9-306 FlexShaft Machine delivers fast, wall-to-wall cleaning, cleaner setups, and on-camera verification. The key benefit is higher productivity with pro-grade results that reduce call-backs and boost customer confidence.

Key Specifications

Spec	Detail
Product Name (Primary Keyword)	RIDGID K9-306 FlexShaft Machine
Model / SKU	66593
Pipe Capacity	3″ – 6″ (75 – 150 mm)
Cable	125′ x 3/8″ (38 m x 10 mm)
Motor	1.5 HP internal universal motor with I-Clutch™
Activation	Foot switch
Drum	Fully enclosed
Mobility	Telescoping handle, multiple wheels, grab points
Accessories	Chain knockers, brushes, and leaders (sold separately)

Use Cases

• Commercial kitchens: Remove grease and biofilm in 3″–6″ waste lines and verify results with a camera in real time.
• Multi-unit residences: Descale stacks and laterals while minimizing mess thanks to the enclosed drum design.
• Municipal & facility maintenance: Tackle heavy scale and root growth quickly to restore capacity with less downtime.
• Pre- & post-cleaning documentation: Clean and inspect in one pass to capture before/after footage for customers and insurers.

The RIDGID K9-306 FlexShaft Machine is ideal for plumbers, drain cleaners, and facility teams who need rapid, verifiable cleaning in mid-diameter pipe with minimal cleanup and maximum control.

Why Choose This Product

• Speed + Verification: Clean and inspect simultaneously to shorten job times and increase confidence.
• Wall-to-Wall Results: Chain knockers expand to match pipe diameter for consistent descaling and debris removal.
• Cleaner Workflow: Enclosed drum and foot-switch control improve safety and reduce jobsite cleanup.
• Built for Pros: I-Clutch™ protection, robust motor, and a complete accessory ecosystem for varied line conditions.

Frequently Asked Questions (FAQ)

What pipe sizes does the RIDGID K9-306 FlexShaft Machine handle?

The K9-306 FlexShaft is designed for 3″–6″ (75–150 mm) pipes and ships with 125′ of 3/8″ cable.

Can I use a camera while cleaning?

Yes. The K9-306 supports simultaneous camera use so you can verify cleaning progress and document final results.

What accessories are available?

A full range of chain knockers, brushes, and leaders is available to match pipe material and severity of buildup.

Related Products & Categories

• RIDGID® Drain Cleaning Equipment
• RIDGID® Diagnostics, Inspection & Locating
• RIDGID RIDGID K9-306 FlexShaft Machine Operator’s Manual (PDF)
• Visit RIDGID Official Site

Ready to clean faster and document as you go? Equip your crew with the RIDGID K9-306 FlexShaft Machine (66593) for wall-to-wall descaling and camera-verified results in 3″–6″ lines. Add to cart or call (800) 821-7275 for expert support from J.M. McKinney Co.