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Internet # 313212783

Model # 2744-21-48-73-2040

M18 FUEL 3-1/2 in. 18-Volt 21-Degree Lithium-Ion Brushless Framing Nailer Kit and Performance Safety Glasses with Gasket

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  • Power to sink nails into dense engineered lumber
  • Fires 3 nails per second, no gas cartridge required
  • Removable gasket protects against debris
  • View More Details
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Product Details

About This Product

The Milwaukee M18 FUEL 21° Framing Nailer Kit sets the new standard for cordless framing nailers. By leveraging a nitrogen spring mechanism, POWERSTATE brushless motor, and REDLINK Intelligence, this nailer provides users with pneumatic performance and the convenience and freedom of cordless power. To keep users productive and efficient throughout the day, the framing gun fires 3 nails per second with zero ramp-up time, meaning a nail is fired as soon as the user pulls the trigger. Additionally, the cordless framing nailer operates using only Milwaukee's REDLITHIUM Batteries and sealed compressed nitrogen to drive each nail, completely eliminating the cost of gas cartridges and maintenance associated with competitors' nailers. The M18 FUEL 21° Framing Nailer delivers the pneumatic performance and durability that professional carpenters and remodelers expect, without the hassle of a compressor and hose or gas cartridge. The Milwaukee Performance Safety Glasses with Gaskets provide Advanced Protection with Ultimate Performance. The safety glasses feature a removeable gasket that protects the user's eyes against debris. For added protection, the lenses are high-velocity impact tested providing users with military grade impact protection. The protective eyewear features fog-free lenses so the lenses will stay clear and unobstructed on any jobsite. Durable anti-scratch lenses protect the user's eyes while withstanding the demands of a job site.


  • Zero ramp-up time
  • Tool free drive depth adjustment
  • Sequential and contact actuation firing modes
  • Dry fire lockout
  • Rafter hook included
  • Belt hook included
  • On board hex key storage
  • On / off power button
  • No-mar tip included
  • Includes: (1) 2744-20 M18 FUEL 3-1/2 in. 18-Volt 21° framing nailer, (1) M18 XC5.0 battery pack, (1) M18 and M12 multi-voltage charger, a rafter hook, non-marring tip, and a contractor bag, (1) 48-73-2040 high performance safety glasses with clear lenses and gasket
  • 48-73-2040: Military grade impact protection
  • 48-73-2040: lasting fog-free lenses
  • 48-73-2040: ANSI Z87.1+
  • 48-73-2040: CSA Z94.3

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Product Information

Internet # 313212783

Model # 2744-21-48-73-2040

Additional Resources

Shop All Milwaukee


Dimensions: H 15.2 in, W 4.7 in, D 14.1 in


Battery Charge Time (Hours)


Nail Angle

21 degree

Nail Gauge


Product Depth (in.)

14.1 in

Product Height (in.)

15.2 in

Product Width (in.)

4.7 in


Air Tool Type

Air Nailer Kit

Battery Amp Hours

5 Ah


(1) 5 Ah Battery & Charger Included

Charger Included

Charger Included



Cord Style




Firing Mode

Contact, Single Sequential


Bag, Battery, Battery Charger, Safety Glasses

Loading type


Magazine Capacity


Maximum Fastener Size

3-1/2 in

Minimum Fastener Size

2 in

Motor Type



Single Purpose

Nailer Features

No Features

Number of Total Batteries Included


Power Type




Tool Weight (lb.)

11 lb

Tools Product Type

Air Tool Kit

Voltage (v)


Questions & Answers

Q:Can I replace the gasket/lenses?
by|Jan 19, 2024
1 Answer
Answer This Question

A:  Hello Felix - they are not replaceable. - Milwaukee Tool, Social Team

by|Jan 20, 2024
    Q:Can I use griprite collated paper tape offset round head nails. If not what brand/style works best?
    by|Dec 5, 2023
    1 Answer
    Answer This Question

    A:  Use only recommended fasteners of the correct size, length, collation angle and head type as indicated on the tool's nameplate. - Milwaukee Tool, Social Team

    by|Dec 7, 2023
      Q:Is this good for fences?
      by|Oct 18, 2023
      1 Answer
      Answer This Question

      A:  We do not recommend using this for fences. - Milwaukee Tool, Social Team

      by|Nov 11, 2023
        2 found this answer helpful
        Q:Does anybody know if I could use 28 degree ? Bostch ? stick nails . ? I have a Bostch pneumatic stick nailer that uses 28 degrees . I?d hate to have to but an additional style nail . Any help would be appreciated.
        by|Apr 30, 2023
        1 Answer
        Answer This Question

        A:  For the M18 FUEL™ 30 Degree Framing Nailer we recommend using 30 degree clipped or full head nails. - Social Team

        by|May 2, 2023
          Showing 1-4 of 39

          Customer Reviews

          4.5 out of 5

          • 4.5 out of 482 reviews
          • 85% recommend this product
          Filter by:
          Showing 1-10 of 482 reviews
          Fogged up and concrete dust got through the gasket
          After only one use I am completely disappointed in these. I was hammer drilling drop in anchors above head and figured I would try these out so I’m would stop getting concrete dust in my eyes and stop fogging up my regular safety glasses from wearing my dust mask. These turned out to be just as worst as your run of the mill 2$ safety glasses. I got so much concrete dust inside that every time I wiped it off they would scratch up. I don’t understand what the gasket is even for if it doesn’t work.
          Response from Milwaukee ToolMar 26, 2024
          Hi Garcia, we appreciate your feedback on your safety glasses, and we are sorry to hear about your experience. If you have any additional feedback, please reach out to us at social.media@milwaukeetool.com. Thank you! - Milwaukee Tool Social Team
            horrible delivery
            They dropped this product off at my front door completely destroyed. The packaging was so soaked. It fell apart when I picked it up and it didn’t sit out there. I actually waited for him to drop it off and then I walked out there one minute after it was at my front door this is what i received
              • Recommended
              2 found this review helpful
              This Milwaukee M18 cordless framing nail gun is fantastic. I've had plenty of pneumatic guns and ...
              This Milwaukee M18 cordless framing nail gun is fantastic. I've had plenty of pneumatic guns and other brand cordless framing nailers, but this bridges the gap between the two where power and portability meet, all in a convenient and well-made package. This model is 21-degree for full round head framing nails, which code requires for seismic in my area. It comes with a 5.0Ah battery, charger, and convenient soft bag. It is easy to turn on and use, and select which mode you want. Full charge and framing lumber, this sinks standard smooth shank framing nails as fast as I can fire it without pop ups or delays. The tip is nonstandard, a flat type and not the circular tooth style I'm used to, but it works just fine just different. It does have a plastic tip for installing siding and trim. Overall a great powerful product. No more hauling around compressor and cords, especially on ladders this is a godsend. Obviously if you're doing sheathing work with constant nailing or production work all day, a pneumatic gun is a better choice, but for remodel work, interrupted work, portability, etc this gun is king.
              • Recommended
              1 found this review helpful
              Heavy – 11.4lbs vs 8.0 lbs for my pneumatic framing nailer. It holds fewer nails (43 vs typically...
              Heavy – 11.4lbs vs 8.0 lbs for my pneumatic framing nailer. It holds fewer nails (43 vs typically 60), but an extension is available to increase it to 86 nails. Roughly 14.5” from head to tip so possible to use it between studs. The loading mechanism is unique as nail strips are loaded from the back, not the top of the magazine, with the spring-loaded “pusher” engaging via a squeeze tab. The same tab is engaged to remove unused nails from the magazine – it works well once you get used to it. There is a slight delay while powering up/down and changing mode, but that's good to prevent inadvertent change. A hex (Allen) wrench is included for use in jam removal, and it stores nicely in the rear of the handle. A small LED light at back of unit is mostly useless, as it shines down instead of forward. The unit fires instantly when the trigger is pulled, and bump mode is quick. Dry-fire lockout works fine, and it engages when there are fewer than 4-5 nails left in the magazine. I noticed that often times the first nail in a strip did not engage, possibly because of excess plastic, even though the gun fired. It leaves a nice hole in the wood. A no-mar pad is included, but there's no place to store it on the tool when not in use. As far as I can determine, the nailer is not designed for use with metal connectors – there is no special tip or guide available. No problem driving 3” nails into PT lumber. The tool includes both a rafter hook you can swing out, and a belt hook – but hanging 11+ pounds from a belt requires a very sturdy belt; otherwise, wear your best underwear. This is a well made unit, but all things considered (weight, price, capacity), I would stick with my other nailer for larger jobs. For smaller jobs this is as excellent option.
              • Recommended
              2 found this review helpful
              This is a great nailer, it is powerful, convenient to use, especially when you want to break d...
              This is a great nailer, it is powerful, convenient to use, especially when you want to break down the site to get head home for the day and pack up your compressor and hoses. I used a cordless nailer on a job site, while framing the walls for the second floor. With two other people using pneumatic nailers, with their Hose going from the 1St floor to the 2nd, not having the Hose to worry about tripping on was a huge plus. Adjusting the depth is easy, just turn the silver dial on nose. This has an LED most cases you may noy needbiy, but with all tools you won't need them all thr time but when you do, you are glad it is there. This lost a star due to the weight. It is a little heavy, especially at the top so it has the tendency to Lean to the right while in my hand. Overhead work may be tedious with this, but who doesn't want bulging shoulders. I used all types of batteries with this, The CP3.0, 5, 9, 12. And this fired well with all of them. Due to the weight of the 12, O would recommend a smaller battery like the 3. I used this on 2x for a stand I am making as well as attaching Jacks to Kings. Worked great in both single fire and bump fire modes The strips of nails In had. 3" .131 came in strips of 25, I could put 2 strips in, but this nailer did not lock them in, so I could only usr 1 full strip at a time. The dryfire lockout kicked in with 4 nails left in the magazine, I was able to add a new strip to the remaining 4 so the nails are not wasted. This also comes with a marring tip to protect your work surface, I did not use it as the framing I did, did not call for it. This fit in my mid size packout box although it is a very snug fit.
              • Recommended
              1 found this review helpful
              This cordless Framing Nailer works great. Now with this tool no more air lines to deal with. The ...
              This cordless Framing Nailer works great. Now with this tool no more air lines to deal with. The nail gun has plenty of power and multiple functions. They are single fire and multi nailing by holding the trigger and touching the hammer to the work surface. There is a belt hanging clip as well as a clip to hang the gun from a rafter There is plenty of power and the depth adjustment is easily adjusted by a knob near the head. Although the weight is a bit more than my air nailer, it is much more convenient. It is a bit smaller in length so it will get in smaller locations There is an aftermarket high capacity nail rack available.
              • Recommended
              1 found this review helpful
              This nailer is an excellent replacement to my old pneumatic nailer. I got my first pneumatic fram...
              This nailer is an excellent replacement to my old pneumatic nailer. I got my first pneumatic framing nailer about 15 years ago. It served me well during various projects around the house. My first nailer was a gift and not being a career carpenter I wonder if it would get enough use. Well, it did and now I won't live without one. This Milwaukee nailer is great, it relieves me of having to drag out a compressor nor do I have to worry about tripping over the hose anymore. Its very powerful and easy to adjust unlike a pneumatic nailer. This kit comes with everything you need accept the nails. So, if your a full time carpenter - you already know Milwaukee products are great. If your a DIY'er wondering (like it did) if it's worth the investment - I say YES. I built a shed, framed out basement walls, re-framed for larger windows, built a back porch and helped friends and family with some of their projects.
              • Recommended
              2 found this review helpful
              Up until getting this nailer, I've been using the pneumatic 3.5" full round head framing nailer. ...
              Up until getting this nailer, I've been using the pneumatic 3.5" full round head framing nailer. The problem with using this nailer outside is it needs a compressor and air hose to function. Working on my yard fence was a pain when you're dragging both a compressor and air hose around the yard. Using this cordless framing nailer is essentially the same thing as my corded one but so much better in so many ways. I can adjust the nail depth with two fingers. Clearing nail jams is slightly more involved than my air powered nailer however, it's nor overly hard. [] It does not require a compressor or air hose. [] The uses a brushless motor. [] Does not require gas cartridges to work. [] Uses the same full head nails as my air powered nailer. [] The M18 Redlithium XC5.0 battery last for 700 nails when fully charged. Although this nailer is 2-pounds heavier than my air powered nailer, it's just so much better to use. I love everything about this nailer, especially the Milwaukee quality. Highly Recommended!!!
              • Recommended
              2 found this review helpful
              More like a cannon than a nail gun
              I've had this framing nail gun about a week or so. It's currently being used for the re-framing of a garage with some new support posts and header beams being installed. This gun is more like a cannon than a nail gun. It just shoots great into everything! Other reviews saying the gun leaves nails sticking out inches are doing something wrong, either your depth adjustment is all wrong or your gun is defective from the factory. And if you need a wrench as one reviewer put it to adjust the depth adjustment knob then you're either doing something wrong or you have a defective gun from he factory, my gun's depth adjustment works easily with just two fingers to twist the knob. My gun has been shooting into pressure treated wood, douglas fir, redwood, plywood, just about everything. In fact, someone who was working with me commented "wow" when they shot it into some wood, yes it's that powerful. It has not encountered a wood it can't go through. I highly recommend this gun, and I am for the most part a DeWalt guy, but this gun blows everything else cordless away.
                • Recommended
                2 found this review helpful
                The Milwaukee M18 fuel framing nailer kit comes with an XC5.0 red lithium battery and charger as ...
                The Milwaukee M18 fuel framing nailer kit comes with an XC5.0 red lithium battery and charger as well as a handy bag to store and carry the nailer and supplies. The manual specifies 21-degree collation angle with plastic collated nails from 2” to 3-1/2” and diameter from 0.113” to 0.148”. The nailer magazine holds 43 nails (an extended magazine that holds 2 strips is available). Milwaukee does not recommend which nails to use and I found there is a large variety of manufacturers and nail types for all possible uses. I found most nails are supplied in boxes of 1000 nails so it might get expensive to carry a variety of sizes and types. The nail jam clearing instructions are a bit complicated compared to a finish nailer that I have, hopefully this is not a constant issue. There is a long press power button on the back of the nailer as well as a selector for single shot or repeat shot. The single shot requires the nose to be depressed before the trigger will fire. The repeat setting will fire every time when the nose is pressed if the trigger remains pressed. I started with 3” ring shank nails and the head was buried with a straight shot and the point came through the back of 2 soft pine 2x4s. An angled shot was flush, and the point did not come through. I did not test the life of the 5AH battery but in multi fire mode there was no loss of power with multiple shots. The nailer is large and would be hard to get into tight spots but would be excellent for new framing.
                • Recommended
                Showing 1-10 of 482 reviews