HoldwellS 75 ft x 1/2 in Drain Machine
#9 in Main linesFull review
For a homeowner with a 3 or 4 in line close to the cleanout. A budget clone with little support.
Amazon $279.99 eBay$279.99
The HoldwellS 75 ft x 1/2 in Drain Machine rates 3.4 among main lines drain cleaning machines; the Ridgid K-3800 AUTOFEED Drum Machine rates 3.4 among small lines ones. The HoldwellS 75 ft x 1/2 in Drain Machine costs $1,820.26 less ($279.99 vs $2,100.25).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.
Ridgid K-3800 AUTOFEED Drum Machine
#8 in Small linesFull review
For a plumber who wants one drum machine for indoor branch lines, from sink traps to 4 in floor drains with a cable swap. Homeowners get the same 3/8 in reach from a K-400 for much less.
Amazon $2,100.25 eBay$2,100.25
Scores side by side
These two sit in different line size classes (main lines and small lines), and each is scored against the reference points for its own class, so a rating says how well each does among its own line size peers. How we rank explains each factor.
| Factor weight | HoldwellS 75 ft x 1/2 in Drain Machine | Ridgid K-3800 AUTOFEED Drum Machine |
|---|---|---|
| Overall rating | 3.4/5 | 3.4/5 |
| Price 25% | 100 $279.99 | 0 $2,100.25 |
| Cable 25% | 23 75 ft of 1/2 in cable | 70 75 ft of 3/8 in cable |
| Motor 10% | 50 motor power not published (neutral score used) | 0 75 W motor |
| Features 20% | 100 auto feed, foot switch, reverse, cutters included | 80 auto feed, foot switch, cutters included |
| Warranty 20% | 0 warranty not published, scored as none | 100 lifetime warranty |
Specifications
| HoldwellS 75 ft x 1/2 in Drain Machine | Ridgid K-3800 AUTOFEED Drum Machine | |
|---|---|---|
| Cable | ||
| Type | Drum machine | Drum machine |
| Included cable | 75 ft x 1/2 in | 75 ft x 3/8 in |
| Drain sizes | 2 to 4 in | 1.5 to 3 in |
| Cutters included | 4 | 3 |
| Motor | ||
| Motor | - | 75 W |
| Horsepower | - | 0.1 hp |
| Speed | 1,800 rpm | 240 rpm |
| Voltage | - | 115 V |
| Controls and build | ||
| Auto feed | Yes | Yes |
| Foot switch | Yes | Yes |
| Reverse | Yes | - |
| Weight | - | 71 lb |
| Warranty | - | Lifetime |