HoldwellS 100 ft x 3/8 in Drain Machine
#2 in Small linesFull review
For an occasional user who wants the most cable and auto feed for the least money. It is a budget clone with little backing.
Amazon $291.39$291.39
3.8/5
For anyone clearing small drains often who wants auto feed on a machine built to last. It is the same K-400 with a powered feed added.
- 75 ft x 3/8 inCable
- 1.5 to 3 inDrain sizes
- 249 WMotor
- YesAuto feed
Check price at Amazon$949.07
Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Auto feed drives the cable in and out, so it is cleaner and easier on your hands
- Foot pedal plus auto feed lets one person work a long run
- Lifetime warranty
Cons
- About $300 more than the same machine without auto feed
- Still needs a thicker cable, sold separately, for 4 in lines
The Ridgid K-400 family
Every Ridgid K-400 model we rank, smallest first. Ratings compare each against its own line size.
| Model | Cable | Rating | Price |
|---|---|---|---|
| Ridgid K-400 Drum Machine | 75 ft x 3/8 in | 3.8/5 | $629 |
| Ridgid K-400 AUTOFEED Drum Machine (this one) | 75 ft x 3/8 in | 3.8/5 | $949.07 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its line size. How we rank explains each one.
Specifications
| Model number | K-400 AF (27008) |
|---|---|
| Cable | |
| Type | Drum machine |
| Included cable | 75 ft x 3/8 in |
| Drain sizes | 1.5 to 3 in |
| Cutters included | 4 |
| Motor | |
| Motor | 249 W |
| Horsepower | 0.3 hp |
| Speed | 170 rpm |
| Voltage | 115 V |
| Controls and build | |
| Auto feed | Yes |
| Foot switch | Yes |
| Reverse | Yes |
| Weight | 45 lb |
| Warranty | Lifetime |
Alternatives in this line size
Garvee 100 ft x 3/8 in Drain Machine
#3 in Small linesFull review
For a budget buyer who wants a long cable and plenty of cutters for home drains. Support and parts are the gamble.
Amazon $335.99$335.99
Ridgid K-400 Drum Machine
#5 in Small linesFull review
For homeowners and handymen who clear small drains often and want a machine that lasts. It costs more than the clones but is built and backed for years of use.
Amazon $629$629
Compare
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