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Availability:
In Stock.
Arrives
Saturday, Jun 27
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Features
- Brushless Motor delivers the power to complete the widest range of applications of any subcompact hammer drill driver
- Fastest Drilling and Driving applications under load
- Light Weight at 2.6 lbs for tool belt portability and less fatigue in the work day
- 1/2" All-Metal chuck for maximum durability, grip and bit retention
- Mechanical Clutch for consistency in driving a wide range of fasteners
Description
Milwaukee 3404-20 12V Fuel Cordless 1/2" Hammer Drill/Driver (Bare Tool)
Brand: Milwaukee
Power Source: Battery Powered
Maximum Rotational Speed: 1500 RPM
Voltage: 220 Volts
Amperage: 12 Milliamps
Power Source: Battery Powered
Maximum Rotational Speed: 1500 RPM
Voltage: 220 Volts
Amperage: 12 Milliamps
Maximum Chuck Size: 0.5 Inches
Additional Features: Compact, Lightweight
Maximum Torque: 400 Inch Pounds
Number of Speeds: 1
Speed: 1500 RPM
Maximum Power: 800 Watts
Torque: 400 Inch Pounds
Drill Type: Hammer Drill
Is Electric: Yes
Battery Type: Lithium Ion
Drilling Capacity Wood: 0.5 Inches
Drilling Capacity Metal: 0.5 Inches
Item Dimensions L x W x H: 6"L x 2"W x 7"H
Item Weight: 2.2 Pounds
Brand Name: Milwaukee
Included Components: Milwaukee Electric - M12 FUEL. 1/2 HAMMER DRILL-DR
Model Number: 3404-20
UPC: 045242637300
Global Trade Identification Number: 00
Manufacturer: Milwaukee Electric
Manufacturer Warranty Description: Manufacturer Warranty
Manufacturer Part Number: 3404-20
Unit Count: 1.0 Count
Item Type Name: Milwaukee Electric - M12 FUEL. 1/2 HAMMER DRILL-DRIVER
Color: Red/Black
Material Type: Metal
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Jun 27
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This Milwaukee M12 Fuel hammer drill-driver has been excellent for the jobs I have used it on. It has the quality I expect from Milwaukee, with a solid feel in the hand but still a nice lightweight size that is easy to control. The speed and power are great for smaller projects, and it has enough punch when I need to drill into tougher material. I also like that it fits into tighter spots better than a larger drill. The battery life has been good for my use, and overall it is one of those tools that just feels dependable every time I pick it up.
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Reviewed in the United States on May 28, 2026 by Kenneth Lucas
I have been using the Milwaukee M12 Fuel drill in electrical work and light installations, and it has become one of my favorite tools for a clear reason: it is perfectly optimized for its purpose. The first thing that stands out is its size. It is incredibly compact, which allows you to work without problems in tight spaces such as electrical panels, conduits, ceilings, or inside cabinets. In this type of application, the difference compared to larger drills is enormous. Agility is another key point. It is a very comfortable, lightweight, and easy-to-maneuver tool, which reduces fatigue and greatly improves efficiency in repetitive or precision tasks. Now, the most impressive thing is its power relative to its size. Despite being a compact tool from the M12 line, it responds very well in the drilling and screwing typical of electrical installations. It doesn’t feel limited within its range of use, which speaks very well of its design. Battery life is also noteworthy. For normal workdays, it performs very well and allows continuous work without constantly worrying about recharging, especially if you have an extra battery. In practice, it is a tool that feels tailor-made for electricians and similar technical work: installations, maintenance, structured cabling, tray assembly, etc. As a point to consider (rather than a disadvantage), it is not designed for heavy work or constant drilling in very hard materials. But this is not a flaw, but simply understanding that it is optimized for portability and efficiency, not to replace high-power drills. Conclusion: It is an almost perfect drill within its category: compact, agile, with excellent relative power, and very good autonomy. If you work in electricity or technical installations, you will hardly find a more balanced option. Would I buy it again? Absolutely. It is one of those tools that once you use it, you don’t want to be without in your work kit.
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Reviewed in the United States on April 2, 2026 by Carlos Garcia
This is one of the best 12 volt drills I have bought over the last 40 years. I also bought one as a gift for my sister but she couldn't get the battery in and out so she never used it. For me it is a light version of a hammer drill that I bring when I work out of town and might get surprised on a job where maybe I have to drill into block walls. I used it in Alabama on a hotel job where I ended up drilling 400 holes into concrete block walls to mount thermostats and it did the job and didn't wear out (which I expected it to). It also has two speeds fast speed around 1500 RPM and of course is variable speed. It has a clutch so you can use with hex bit to use as a screw driver. It is a solid purchase. Milwaukee has a lot of very overpriced tools but this is a bargain. They have a whole line of 12 volt tools that are light to medium duty. I have good number of 12 volt and 18 volt Milwaukee tools and this ranks near the top for usefulness. I have at least 12 to 18 batteries for the 12 volt Milwaukee tools and most are the worthless small 12 volt batteries - buy the 5 amp hour or larger 12 volt batteries. Also I have tried aftermarket batteries (Waitley) from Amazon for Milwaukee these knock-off batteries don't seem to work well- they lock out and you have to take them out and put back in. Another problem is they tend to come loose and fall out. The opposite is true of the Milwaukee batteries that are hard to remove. I have 2 or 3 18volt Milwaukee hammer drills and they aren't anything special. My top 3 brands of power tools are Milwaukee, DeWalt and Makita and then everything else. Special shout out to Bosch and maybe Hitachi and of course those expensive European brands. What about Hilti? -overpriced but suppose to be very heavy duty I've only used Hilti's that were already worn out. Other notes: Milwaukee drill bits suck and are overpriced. Bosch makes better drill bits and always use oil or WD40 when drilling metal no matter the brand or you will immediately wear out your bits esp. expensive bits. I have some after market batteries for 18 volt Makita and for Paslode that work fine but I haven't tried any for 20 volt DeWalt yet but I've mostly switched over to Milwaukee cordless. When you buy cordless tools don't be like me and have 50 batteries for 6 to 8 brands of tools stick with a good brand with lots of tools (skip those Harbor Freight deals) unless you aren't doing much but light DIY stuff.
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Reviewed in the United States on June 19, 2025 by DG
I recently changed brand loyalty from Team Lime-Green to Team Red (yes, I know. Both TTI and Chinese). I currently have some new M12 tools (all FUEL) and plan to expand to M18 as well. I was amazed by the power for the compact size. The only thing I do not like about the Milwaukee brand is the price. I need to drill into masonry and never acquired a hammer drill over the years. I saw the little 3404-20 in a big box hardware store for about $150. I checked Amazon and found this listing from Tartaglia's Tools - less than a hundred bucks! Too good to be true! I bought it six seconds later. As I waited the two days for delivery, I searched Youtube for examples of the drill being put to the test. It was at this point where this story changes. Many of the videos were testing Genuine Milwaukee tools with counterfeits. Milfauxkee, DeFault and Makinda if you will. Many of the copies came from Amazon unfortunately. So, I started to figure that the "too good to be true" was just that. You get what you pay for. So...when it arrived expected a phony TEMU, Ali Express, Wish hunk of trash. The 3404 arrived in a generic brown box with what appeared to be a genuine Milwaukee operator's manual. The drill itself was solid and looked "real" enough to be a REALLY good copy or the genuine article. I compared the overall feel of the tool, directional button shape and size, coloring of the plastic, fasteners used and sticker placement, color and spelling. I looked for all the "tells" that the videos showed as tip-offs for a counterfeit tool. I found none. Now I wanted to test it out! I took a small 2.0 battery from my 2505-22 kit and a crappy masonry drill bit (1/4") that came with a bit kit i got several years ago. I found a paver, a red brick, concrete footing for my deck and a piece of granite. I drilled into the paver and brick as deep I could go with the 4" bit within 10 - 20 seconds using only medium downward pressure. The concrete footing took a little bit more pressure but wasted no time bottoming out. The chunk of granite, however, only got a half inch deep hole drilled into it using heavy pressure - until the bit snapped. Long story short (too late), this little beast is no phony. This is the real thing. Solid tool. It's got some really good torque and a bit of a kick too. All this using the tiny 2.0 battery. I will definitely cough up the cash for the 5.0 high output for this thing.
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Reviewed in the United States on April 13, 2025 by Steven H
I love this thing. I know I have a bias for Milwaukee but for a 12V product, this thing can do EVERYTHING. I used it at work for a short while, and there wasn't a task I couldn't do with this thing. Having the 1/2" chuck was the best part of this product. Its a bite sized drill that works like a full sized drill. Because of its size, I can fit it in places that a full sized drill can't. Doesn't get any better especially when most of the projects I do aren't very strenuous. This drill makes those small projects fast and easy. If I do use it for larger projects, it still performs great. The only thing that holds it back would be the size of the battery you put in it, but I do have 6.0 Ah batteries so it can last quite a while.
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Reviewed in the United States on January 2, 2026 by Santiago J.
I'm not really going to review this product, I think everyone already knows the M12 lineup are really great tools and it does the job it's made to do. The question that I think everyone is asking is: How can this be such a good deal? It's half of MSRP. Is it refurbished? Returned? I'm pretty confident that this is just arbitrage, the sellers are just buying combo deals from Home Depot and other authorized retailers then selling the individual tools separately. Right now if I wanted to have spent $220 I could have gotten a really good combo deal at Home Depot with this drill, the impact driver, two batteries, and a bit kit. It's a Labor Day sale, some of the combos at HD are more than 50% below MSRP - for something you can walk into a local store and buy, 100% sure it's legit. I notice the same seller I bought this from also has the driver available, and the drill/driver combo is very common. There's no Milwaukee package, because the combo comes in a single box. There's no bag/case because the combo only comes with one bag for both tools. There's no charger or batteries, because the combo either didn't come with them, or because the seller is selling those individually too. Basically, someone spent the $220 I don't have to get a really good deal on some tools, then they re-sold them for well under MSRP but still for more than they paid for them. The drill I got was just in a box in a plastic bag, with the instructions. Milwaukee includes separate instructions for each tool in a combo, and the plastic bag is the same sort genuine tools come in. I compared the drill to another tool I have, the plastic is identical in color and texture, the rubber grip material feels identical. There's no sign that the item is anything but authentic. It also doesn't appear to be used, it's perfectly clean with no dust, finger prints, etc. There is oil/grease anywhere I expect to find it on a new tool, but no grease marks on the handle that would indicate use. There aren't any witness marks on the battery contacts either, so the sign anyone even powered it on. It looks like someone opened up a combo pack, took out this drill in its plastic bag, stuck it into a carboard box along with the manual, and taped it up. Milwaukee could deny warranty on it, that's true. But since it cost HALF of MSRP, I could just buy another one if it fails and not have spent more than if I bought it from Home Depot. I would need to buy two, and have them both fail in the same way, to be SOL. And I've heard many anecdotes of Milwaukee honoring the warranty anyway. Bottom line: Seems legit, and for the price it's definitely worth it. They do lose a star though, because they could have packaged it better.
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Reviewed in the United States on August 27, 2024 by zeel
Great product and literally drilled through my concrete floor so I could bolt my safe to the ground. I bought it just for that function but it's grown to be my favorite tool. Solid and durable. I got after market batteries and the last a long time. If you're looking for power this is good for any household task.
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Reviewed in the United States on June 4, 2026 by J
This little drill is. A beast!, very strong high impact high torque, I was surprised at just how small and powerful this is
Reviewed in the United States on June 8, 2026 by joegunzz