Is the Milwaukee M12 Fuel Subcompact Impact Wrench worth it?

For automotive work in tight spaces, yes. It is one of the shortest and lightest 3/8-inch impact wrenches available, and 225 ft-lbs covers most underhood fasteners. If you mostly deal with heavily rusted bolts, an 18V wrench is a better fit.

Does it come with a battery and charger?

No. The 3049 is a bare tool, so you need a separate M12 REDLITHIUM battery and charger. Milwaukee rates the 225 ft-lbs with the M12 CP High Output 2.5 Ah pack.

How does it compare to the M12 Stubby impact wrench?

The Stubby (2554) is shorter but heavier and rated at 250 ft-lbs. The Subcompact 3049 is lighter at 1.6 lbs and adds 4-mode drive control, which makes it easier to control torque on small fasteners.

What is the difference between the 3048 and 3049?

The 3048 is the 1/2-inch drive version at 4.4 inches and 1.5 lbs. The 3049 is the 3/8-inch drive version at 4.5 inches and 1.6 lbs. Torque and speed ratings are the same.

When is the best time to buy it?

Prices on bare tools drop during Milwaukee promotions and holiday sales, often bundled with a battery. The best new price was $208.95 at eBay as of November 4, 2026; check whether a kit deal beats that.

The wrench only. No battery, charger, socket or case is included, so budget for an M12 battery and charger if you are not already on the platform.

Where can I buy the Milwaukee M12 Fuel Subcompact Impact Wrench?

3 stores we checked sell it, including The Home Depot, Amazon, eBay.

Milwaukee M12 Fuel Subcompact Impact Wrench

Q: Where is the Milwaukee M12 Fuel Subcompact Impact Wrench cheapest?

At Amazon, for $228.10, as of our latest check.

4.9

Best price now

$228.10at AmazonObserved at 11:32 AM

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Amazon

What reviewers say

Rated 4.9 out of 5 from 151 ratings. Owners consistently praise the compact size and light weight for underhood work, and many say it replaces a larger wrench for most jobs. Complaints center on the bare-tool packaging and torque limits on stubborn fasteners.

Pros

Fits where larger impact wrenches cannot
Light enough to use overhead for long stretches
Strong torque for a 12V tool
Useful drive modes, especially auto shut-off

Cons

No battery or charger in the box
Struggles with heavily rusted bolts
Friction ring holds sockets less firmly than a detent pin

About the Milwaukee M12 Fuel Subcompact Impact Wrench

Our M12 FUEL 3/8" Subcompact Impact Wrench with Friction Ring offers the Best Underhood Access for all automotive applications. Measuring just 4.5" in length and 2.0" in width, this tool delivers up to 40% faster application speeds, driving productivity in the shop. Powered by a POWERSTATE Brushless Motor, the Subcompact Impact Wrench achieves 0-3,400 RPM and up to 225 ft-lbs of nut-busting torque with an M12 12V Lithium-Ion CP High Output 2.5 Ah Battery Pack, making it ideal for removing stubborn fasteners. This solution excels in both performance and size. Weighing only 1.6 lbs as a bare tool, it is the Lightest Weight in its class, reducing user fatigue throughout the workweek and fitting into the tightest spaces without the need for additional extensions, swivels, or adapters. Equipped with Tri-LED work lights, it illuminates your work area without casting shadows. The tool has a variable speed trigger with 4-Mode DRIVE CONTROL, this offers greater precision and customization of power output, including AUTO SHUT-OFF that limits torque to 10 ft-lbs for hand-tight applications, preventing overtightening in forward mode. In reverse, the bolt removal mode slows down RPM once the bolt is free, preventing fastener drops in your workspace. Mode changes are effortless with single-handed operation. By shifting the forward-reverse shuttle into neutral and double-tapping the trigger, you can easily switch modes.