Key Features
Big Power, Small BodyWith 1,400 in-lbs of torque in a 6.95 inch body, this hammer drill/driver gives you the muscle for heavy drilling and driving without turning tight-space work into a wrestling match. AutoStop SafetyAutoStop Control Mode helps reduce over-rotation in a bind-up. That matters when you are hole boring or hammer drilling overhead and need better control when the bit grabs. Built to HoldThe all-metal 1/2 inch ratcheting chuck with carbide teeth is made for better bit grip and durability, so you spend less time re-tightening and more time getting through the work.
Overview
The Milwaukee 2904-20 M18 FUEL 1/2″ Hammer Drill/Driver is a cordless hammer drill/driver built for trade pros who need serious drilling and driving power in a compact everyday tool. This is a hammer drill/driver designed for drilling holes, driving fasteners, and hammer drilling in brick, block, and concrete. Model Number: 2904-20. If you already run Milwaukee’s M18 platform and want a bare tool that can handle everything from rough-in work to anchor setting, this is the one aimed squarely at that job.
The big story here is output. Milwaukee rates this drill at 1,400 in-lbs of torque with a 0-2,100 RPM top speed, which puts it in heavy-duty territory for a 1/2 inch cordless drill. On the job, that means better performance when you are boring larger holes, running long fasteners, or pushing through dense material under load. It is not just about peak numbers on paper. The tool is built to keep working when the work gets harder, which is what matters when you are switching from wood framing to masonry drilling in the same day.
What makes the Milwaukee 2904-20 M18 FUEL 1/2″ Hammer Drill/Driver especially useful is that Milwaukee packed that power into a body that measures only 6.95 inches long. That shorter length helps when you are between studs, inside cabinets, above your head, or working around plumbing and conduit where a larger drill starts fighting you. Compact size also helps with balance and fatigue, especially if this is the drill that stays on your belt and gets grabbed all day.
Milwaukee backs the tool with a POWERSTATE brushless motor and REDLINK PLUS intelligence. In plain terms, that means the drill is built to deliver strong performance while also monitoring load and protecting against overload and overheating. That kind of electronic protection matters on a pro jobsite because it helps the tool hold up better when it is used hard, not just occasionally. Add the 2-speed gearbox and 16 clutch settings, and you get a drill that can cover both heavy drilling and more controlled fastening work without feeling like a one-trick tool.
The chuck setup is also worth calling out because it affects daily use more than people think. This model uses an all-metal 1/2 inch ratcheting chuck with carbide teeth for better durability and bit retention. That is the kind of feature you notice when you are drilling repeatedly in tougher material and do not want bits slipping loose. Milwaukee also includes a mechanical clutch for more consistent fastening control across a range of applications, which is helpful when you need repeatable results instead of overdriving screws.
For safety and jobsite practicality, the standout feature is AutoStop Control Mode. When a bit binds, the drill can react to help protect the user from over-rotation. That makes a real difference when you are hole boring with larger accessories or hammer drilling in material that can catch unexpectedly. Milwaukee also adds a dedicated AutoStop indicator light and an LED work light, both of which improve real-world usability without adding fluff. The side handle is included too, which is exactly what you want on a high-torque drill like this.
System-wise, this is a bare M18 tool, so it is designed for users already invested in Milwaukee’s M18 battery system. No battery or charger is included. If you already own M18 REDLITHIUM batteries and chargers, that is a plus because you can drop this tool into your existing setup without paying again for power sources you already have. If you are starting from scratch, just know you will need to add a battery and charger separately.
Who should buy it? Electricians, plumbers, remodelers, general contractors, and serious DIY users who want one primary drill that can handle wood, fasteners, and masonry without stepping up to a much larger specialty tool. If your work regularly calls for tight-space drilling, anchor prep, rough-in boring, and everyday fastening, this model makes a strong case because it gives you top-tier output without the bulk that usually comes with it.
Compact Power for Tight Work Areas
This drill is built for the kind of work where space is limited but power still matters. The short overall length helps you stay productive in stud bays, overhead spots, utility rooms, and cabinet work where a longer tool gets awkward fast.
- Only 6.95 inches long for improved access and maneuverability
- 1,400 in-lbs of torque for large hole boring and heavy-duty driving
- Side handle included for better control when the application gets demanding
What’s in the Box
- (1) Milwaukee 2904-20 M18 FUEL 1/2″ Hammer Drill/Driver
- (1) Side Handle
- (1) Belt Clip
Battery and charger are sold separately.
Key Specifications
| Battery System | M18 |
|---|---|
| Motor Type | POWERSTATE Brushless |
| Chuck Size | 1/2 in |
| Chuck Type | All-Metal Ratcheting |
| Torque | 1,400 in-lbs |
| No-Load Speed | 0-2,100 RPM |
| Length | 6.95 in |
| Weight | 3.3 lbs |
Compatibility
Battery PlatformCompatible with Milwaukee M18 battery system packs. This is a bare tool and does not include a battery. Charging SystemDesigned for Milwaukee M18 charging setup. Charger is sold separately.
Built For
Electrical Plumbing General Contracting Remodeling Wood Framing Masonry Drilling Fastening Overhead Work
Pro Tip
When you are boring larger holes or using the hammer mode in tougher material, take the extra minute to mount the side handle and let AutoStop do its job. On a drill with this much torque, that added control is not optional if you want smoother, less fatiguing work.
Warranty & Support
5 Year Limited Warranty.
Tool Nut’s Take
Tool Nut’s Take
Milwaukee 2904-20 M18 FUEL 1/2″ Hammer Drill/Driver Gets the Hard Stuff Done
This is the kind of drill you buy when you want one cordless hammer drill/driver that can cover daily work without feeling undergunned.
- Who it’s for: Pros and serious users on the M18 platform who need a compact drill for wood, fasteners, and masonry work.
- Why it stands out: You are getting 1,400 in-lbs of torque, a very compact 6.95 inch length, a durable all-metal chuck, and AutoStop safety in one package.
- Worth knowing: This is a bare tool, so plan on adding a battery and charger if you are not already running M18 packs.
Common Questions
- Is this a hammer drill or a standard drill/driver? It is a hammer drill/driver, so it can drill, drive fasteners, and hammer drill in brick, block, and concrete.
- Does this tool include a battery or charger? No. The Milwaukee 2904-20 is sold as a bare tool and requires a separate Milwaukee M18 battery and charger.
- How fast does it run? It has a 2-speed setup with a top no-load speed of 0-2,100 RPM.
- Does it have a safety feature for bind-up situations? Yes. It includes AutoStop Control Mode to help protect against over-rotation during a bind-up.
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