The polisher/sander can be used with wet sanding paper for automotive use. You would need to find the correct kit compatible to it for wet sand paper.
Free Gift Card Details
- The promotion will be automatically applied on the Shopping Cart page.
- To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
- Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
- E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
- Free e-gift cards expire 10/01/26.
- Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
- Valid online and in participating retail stores.
- Limited-time offer. Subject to change without notice.
Milwaukee M12 Variable Speed Cordless Polisher/Sander Kit, 1 Battery, Model# 2438-22X

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

Click or Tap image to Zoom
Shipping:
Free shipping (lower 48 states) - Available now
- Tool-free accessory change: quickly change between polishing and sanding accessories
- Industry leading run-time: 1 complete pass on exterior trim on one battery
- Variable speed trigger: greater precision for total user control
- Compact design: easily navigate through tough to reach areas
- Removable side handle: offers more control when the user needs it
See full description
Description
Key Specs
Reviews
Q & A
Accessories
Warranty
Compare
Product Summary
What's Included
- (1) M12™ Variable Speed Polisher/Sander (Tool Only) (2438-20) (1) M12™ Lithium-ion Battery Charger (48-59-2401) (1) M12™ XC High Capacity REDLITHIUM™ Battery (48-11-2402) (1) M12™ REDLITHIUM™ CP1.5 Battery Pack (48-11-2401) (1) 5 PC Accessory Pack: (1) 3" polishing backing pad; (1) 2" sanding backing pad; (1) wool pad; (1) yellow foam pad; (1) white foam pad (1) Side Handle (1) Carrying Case
Downloads
Over 80 Tools, One Battery
- More than 80 unique solutions make the M12™ family the largest sub-compact cordless system on the market.
- M12™ defines cordless tool innovation, transforming inefficient manual tools into advanced workhorses powered by MILWAUKEE's ® REDLITHIUM™ battery technology.
The M12™ System – Built For The Jobsite
- The MILWAUKEE ® M12™ cordless system delivers industry leading durability and power in a size that outperforms the competition in the tightest places.
- REDLITHIUM™ batteries last longer, think faster, and work harder than all other professional LITHIUM-ION batteries. Built to withstand the harshest environments, REDLITHIUM™ batteries deliver more work over the course of your day and the life of the battery.
- Combining advanced hardware and software, REDLINK™ Intelligence enables advanced communication between your batteries and tools, allowing for unmatched levels of performance, protection, and productivity.
Shop With Confidence
- MILWAUKEE ® provides the best in heavy-duty electric power tools and accessories.
- Your purchase is protected with a 5-year limited warranty on cordless tools, a 2-year limited warranty on compact batteries, and a 3-year limited warranty on XC batteries.
- Shop in complete confidence, knowing that Northern Tool + Equipment protects your investment and is ready to provide you with the assistance and helpful resources you need.
Features + Benefits
- Tool-free accessory change: quickly change between polishing and sanding accessories
- Industry leading run-time: 1 complete pass on exterior trim on one battery
- Variable speed trigger: greater precision for total user control
- Compact design: easily navigate through tough to reach areas
- Removable side handle: offers more control when the user needs it
- 5-pc. accessory pack includes 3in. polishing backing pad, 2in. sanding backing pad, wool pad, yellow foam pad and white foam padDual mode control: perform the work of 2 tools with 1 by easily switching between polishing and sanding modes
- Polishing mode: 0-2,800 RPM
- Sanding mode: 0-8,300 RPM
- Battery fuel gauge: displays remaining battery life
- REDLITHIUM batteries: delivers a full pass on exterior trim or two headlights on one charge
- 5-piece accy pack: (1) 3 in. polishing pad; (1) 2 in. sanding pad; (1) wool pad; (1) yellow foam pad; (1) white foam pad, (1) side handle, (1) carrying case
Key Specs
| Attribute | Specification |
|---|---|
item# | 51345 |
Brand | Milwaukee |
Manufacturer's Warranty | 5 year limited warranty |
Ship Weight | 5.58 LB |
Volts | 12 |
Pad Size | 3 in |
| Attribute | Specification |
|---|---|
Max. Speed | 8,300 rpm |
Cordless | Yes |
Variable Speed | Yes |
Battery Type | Lithium-ion |
Batteries Included | Yes |
Storage Type | Nylon Case |
Reviews
Questions & Answers
Questions
-
· 2 months ago
I’m looking for automotive wet sanding paper that can attach to this sander polisher ? Is that available to fit
1 answer-
ProductExpert6· 2 months ago
Helpful?
-
-
· 3 years ago
Is buffing pads & backing plates available as a kit or could I buy them separate ? I would like to buy the backing plates for sanding & Buffing pads . I have the tool ..
1 answer-
ProductExpert29· 3 years ago
The buffing pads and backing plates are not available through Northern Tool.
Helpful?
-
-
· 4 years ago
Does this have a lock like a drill for a bit? Would it stand continuous use like for an hour or more?
1 answer-
ProductExpert11· 4 years ago
To change the backing pad, press the spindle lock and thread the backing pad into the spindle. Hand tighten securely. The sander/polisher is able to handle continuous duty.
Helpful?
-
-
· 5 years ago
Will a M18 battery work for this tool? Is there any stronger battery that works for this buffer?
1 answer-
ProductExpert38· 5 years ago
This only works with Milwaukee 12 volt batteries, the largest available battery is item 63328, XC 6.0 extended capacity battery pack.
Helpful?
-
Accessories We Recommend
This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.
Warranty
Manufacturer's Warranty
5 year limited warranty
Compare with Most Popular in Polishers
See All Polishers
See All Milwaukee Polishers
Currently Viewing This Product
$299.00Shipping:
Free shipping (lower 48 states) - Available nowStore Pickup:
- $349.00
Shipping:
Backordered: Order now to reserve yours -
Estimated to ship 06/29/26Store Pickup:
Item # 5876440
$359.00Shipping:
Factory shippedStore Pickup:
Item # 7005963
$167.99Shipping:
Factory shippedStore Pickup:
Specifications
12
18
20
-
3 in
6 in
5 in
6 in
8,300 rpm
4,500 rpm
5,500 rpm
-
Yes
Yes
Yes
No
Yes
Yes
Yes
-
Lithium-ion
Lithium-ion
Lithium-ion
-
Yes
No
No
-
Nylon Case
None
None
-
-
Trigger
Trigger
-
-
Yes
No
-
-
5.6100 lb
6.3500 lb
5.1200 lb
-
5.32 x x in
18.346 x 5.1 x 6.5 in
16.54 x 7.87 x 5.51 in
-
-
5
-
-
-
No
-
See All Polishers
See All Milwaukee Polishers
Recently Viewed Items
This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.










