RIDGID K-46 Cordless SinkSnake™ Drain Cleaning Machine (78088)

The RIDGID K-46 Cordless SinkSnake™ (78088) is a powerful and versatile cordless drain cleaning machine designed for clearing tough blockages in ¾″ to 3″ (20–76mm) drain lines. Ideal for professional plumbers and maintenance engineers, it easily tackles clogs in sinks, baths, showers, and urinals with reliable cordless performance.

Powered by the RIDGID 18V Advanced Lithium Battery Platform, the K-46 delivers the mobility and runtime required for demanding daily work without the limitations of mains power. Its brushless DC motor provides strong, consistent torque to break through grease, sludge, and debris while maintaining efficiency and durability.

Engineered for comfort and control, the machine features a multi-position kickstand that supports the tool in tight working environments such as under sinks or inside bath tubs. The 360° rotatable AUTOFEED® system automatically advances and retracts the cable in both forward and reverse directions, helping navigate tight bends, traps, and difficult pipe runs.

The K-46 comes fitted with a 5/16″ x 25′ (8mm x 7.6m) Inner Core cable, but it is also compatible with 1/4″ and 3/8″ cables up to 50ft (15.2m), giving professionals the flexibility to handle a wide range of residential and light commercial drain cleaning tasks.

With an enclosed rotating drum to protect fixtures and a top-mounted LED work light for improved visibility, the RIDGID K-46 is designed to deliver efficient, safe and professional drain cleaning performance.

Key Features

• Cordless Operation – Powered by the RIDGID 18V battery platform for complete jobsite mobility

• Brushless Motor Performance – Clears tough blockages in ¾″–3″ drain lines with high efficiency

• 360° AUTOFEED® System – Automatically feeds and retracts cable in forward and reverse for smoother navigation through bends and traps

• Multi-Position Kickstand – Supports the machine in tight spaces such as under sinks or inside bath tubs

• Cable Versatility – Compatible with 1/4″, 5/16″ and 3/8″ cables up to 50ft depending on diameter

• Enclosed Rotating Drum – Protects fixtures and surrounding surfaces during operation

• Cable Lock Control – Improves handling when manually working stubborn blockages

• Integrated LED Work Light – Illuminates dark work areas such as beneath sinks and cabinets

Technical Specifications

• Drain Capacity: ¾″ – 3″ (20mm – 76mm)

• Cable Compatibility: 1/4″ (6mm), 5/16″ (8mm), 3/8″ (10mm)

• Drum Capacity:

  • 50 ft (15.2m) of 1/4″ cable

  • 50 ft (15.2m) of 5/16″ cable

  • 35 ft (10.7m) of 3/8″ cable

• Power Supply: RIDGID RB-18XX 18V Battery Pack

• Motor Type: Brushless DC

• Voltage: 18V

• Current: 16A

• Power: 288W

• No-Load Speed: 0–560 RPM

• AUTOFEED Speed: Up to 26 ft/min (8m/min)

• Machine Weight (no cable/battery): 4.4 kg

• Weight with Cable & Battery: 6.9 kg

• Dimensions: 532 x 222 x 287 mm

• Operating Temperature: −10°C to 50°C

• Approvals: cETLus, CE, UKCA