Milwaukee M18 Drum Machine 2817A-21
#7 in Small linesFull review
For a Milwaukee M18 owner who wants a cordless small line machine. It skips the extension cord but costs more than corded drum machines of the same size.
Acme Tools $699 eBay$699
The Milwaukee M18 Drum Machine 2817A-21 is the better drain cleaning machine overall, rated 3.7 to 3.4. The Milwaukee M18 Drum Machine 2817A-21 leads on price. The Ridgid K-3800 AUTOFEED Drum Machine wins on features. The Milwaukee M18 Drum Machine 2817A-21 costs $1,401.25 less ($699 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
Which should you buy?
- Choose the Milwaukee M18 Drum Machine 2817A-21 for price ($699 vs $2,100.25).
- Choose the Ridgid K-3800 AUTOFEED Drum Machine for features (auto feed, foot switch, cutters included vs foot switch, cutters included).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every small lines drain cleaning machine; a clear win is highlighted. How we rank explains each one.
| Factor weight | Milwaukee M18 Drum Machine 2817A-21 | Ridgid K-3800 AUTOFEED Drum Machine |
|---|---|---|
| Overall rating | 3.7/5 | 3.4/5 |
| Price 25% | 43 $699 | 0 $2,100.25 |
| Cable 25% | 70 75 ft of 3/8 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% | 45 foot switch, cutters included | 80 auto feed, foot switch, cutters included |
| Warranty 20% | 100 5-year warranty | 100 lifetime warranty |
Specifications
| Milwaukee M18 Drum Machine 2817A-21 | Ridgid K-3800 AUTOFEED Drum Machine | |
|---|---|---|
| Cable | ||
| Type | Drum machine | Drum machine |
| Included cable | 75 ft x 3/8 in | 75 ft x 3/8 in |
| Drain sizes | 1.5 to 3 in | 1.5 to 3 in |
| Cutters included | 5 | 3 |
| Motor | ||
| Motor | - | 75 W |
| Horsepower | - | 0.1 hp |
| Speed | - | 240 rpm |
| Voltage | 18 V | 115 V |
| Cordless | Yes | - |
| Controls and build | ||
| Auto feed | No | Yes |
| Foot switch | Yes | Yes |
| Weight | - | 71 lb |
| Warranty | 5 years | Lifetime |