Milwaukee 2738-20 M18 18-Volt Fuel Lithium-Ion Brushless Cordless 7 inch Review
Our verdict
The Milwaukee M is an 18-volt battery-powered 7-inch cordless polisher rated 4.6 stars across 1,625 verified reviews, with 400 units purchased last month, making it one of the best-selling options in the cordless polisher segment at $249.99. Its 2200 RPM operating speed and full 18-volt platform make it a practical choice for serious DIY and light professional detailing.
Check price on AmazonBest for
Milwaukee M18 battery platform users and enthusiast detailers who want a capable large-pad cordless polisher for paint correction and finishing
Skip if
Buyers who need a compact lightweight tool for tight spaces, or those outside the Milwaukee 18V battery ecosystem looking to avoid a new platform investment
- Power Source Battery Powered
- Voltage 18 Volts
- Speed 2200 RPM
- Weight 120.64 Ounces
- Priced 108% above the category median ($119.99 across 37 tracked models)
Our scorecard
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Owner rating4.6/5
4.6 average across 1,625 owner ratings
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Popularity4.3/5
1,625 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other power tools and workshop machinery we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The Milwaukee M runs on an 18-volt battery-powered platform at 2200 RPM, matching the operating speed of corded competitors like the DEWALT DCM849B while maintaining full cordless freedom. The 7-inch pad format covers more surface area per pass compared to smaller 5 or 6 inch pads, speeding up work on large panels.
At 120.64 ounces (approximately 7.5 pounds), the Milwaukee M is on the heavier end of the cordless polisher spectrum. That weight is in part a result of the 18-volt battery pack and the larger 7-inch head, both of which contribute to extended-reach capability and larger coverage. Based on specs and verified owner reviews, the 4.6-star rating from 1,625 buyers reflects sustained satisfaction with real-world performance.
With 400 units purchased last month and a review volume of 1,625, the Milwaukee M sits among the most actively demanded cordless polishers in this category. At $249.99, buyers investing in the Milwaukee M18 platform or already owning M18 batteries will find this a strong standalone or add-on tool.
Pros
- 400 units sold last month confirms it as one of the top-demand cordless polishers in this segment
- 4.6-star rating from 1,625 verified owners backs real-world performance claims
- 18-volt battery platform delivers strong cordless output for sustained detailing sessions
- 7-inch pad format covers more surface area per pass than smaller pads
- $249.99 is competitive for an 18V brushless cordless polisher
Cons
- 120.64-ounce (approximately 7.5 lb) weight causes arm fatigue during extended one-handed use
- Requires Milwaukee M18 battery investment for buyers new to the platform
- 2200 RPM is a fixed listed speed with no variable speed spec published in available data
Specifications
| Power Source | Battery Powered |
|---|---|
| Voltage | 18 Volts |
| Speed | 2200 RPM |
| Weight | 120.64 Ounces |
Performance notes
Operates at 18 volts battery-powered with a 2200 RPM working speed and a 7-inch pad configuration. The 120.64-ounce body weight is partly attributed to the M18 battery pack and the larger pad head. At this voltage and RPM combination, the tool handles both light finishing and moderate paint correction in a single session.
What buyers say
Owners frequently cite the Milwaukee M's cordless convenience and the reliability of the 18V platform as primary positives. The weight draws some mentions in negative feedback, though many users who detail full vehicles regularly view the 7-inch head and 18V output as justified for the coverage they gain per pass.
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Frequently asked questions
Does the Milwaukee M come with an M18 battery?
The B01N909O6H listing is the bare tool model (2738-20 designation in the title). Battery and charger are typically sold separately unless specified as a kit. Check the product listing for bundle options.
What pad size does the Milwaukee M use?
The product title specifies a 7-inch cordless polisher format. Specific backing plate or pad sizes for use with this tool are not detailed in the published specs beyond that designation.
Questions about Milwaukee polisher compatibility?
Contact the ToolGalaxy team at hello@toolgalaxy.com for guidance.