M18 FUEL 1/2" Hammer Drill/Driver

Milwaukee M18 FUEL 1/2" Hammer Drill/Driver (Model 2904-20)

The Milwaukee M18 FUEL 1/2" Hammer Drill/Driver (2904-20) is the industry's most powerful cordless hammer drill, built for professionals who need maximum torque and drilling capacity in dense materials. This bare tool delivers 1400 inch-pounds of torque through a POWERSTATE Brushless Motor, enabling it to drill 2-9/16" self-feed holes in dense woods at high speed. At only 6.9" in length, it's the most compact solution in its class while offering AutoStop Control Mode for enhanced operator safety in bind-up situations. This tool is designed for electricians, plumbers, HVAC technicians, and general contractors who demand both power and maneuverability in tight spaces.

Key Features & Benefits

• POWERSTATE Brushless Motor: Delivers the highest power under load in its class, enabling drilling of the largest diameter holes (up to 2-9/16" self-feed) in the densest woods for increased job site productivity.
• Most Compact Design (6.9" Length): Provides superior access into tight spaces between studs, joists, and mechanical equipment while reducing operator fatigue during overhead or extended use.
• AutoStop Control Mode: Detects bind-up conditions and stops rotation in the fastest reaction time in the industry, protecting operators from over-rotation injuries. A dedicated AutoStop indicator light on the tool's foot signals when a protection event occurs.
• 1400 Inch-Pounds of Torque: Powers through the widest range of drilling and fastening applications, from driving large lag bolts to boring through engineered lumber and steel.
• 1/2" All-Metal Ratcheting Chuck with Carbide Teeth: Maximizes bit retention and durability while resisting corrosion from job site conditions. The ratcheting lock design provides superior grip strength compared to keyless chucks.
• REDLINK PLUS Intelligence: Protects the tool and battery from overloads, overheating, and over-discharge, ensuring maximum performance and extended system life.
• Mechanical Clutch: Delivers consistent performance when driving a wide range of fastener sizes and types, from deck screws to lag bolts.
• Hammer Drill Mode: Enables fast drilling into brick, block, and concrete without requiring a separate rotary hammer for light masonry work.

Compatibility & Requirements

This tool requires M18 REDLITHIUM battery packs (sold separately, 0 batteries included). It is compatible with all M18 lithium-ion batteries in the Milwaukee system. For maximum runtime, Milwaukee recommends using XC5.0Ah or higher capacity batteries. The tool uses standard 1/2" shank drill bits and driver bits.

Installation & Care

The all-metal belt clip attaches to either side of the tool for portability on job sites. The LED light activates automatically to improve visibility in low-light work areas. Regular maintenance involves keeping the chuck jaws clean and free of debris, checking that bits are fully seated before operation, and storing the tool in a dry location when not in use.

What's Included

• M18 FUEL 1/2" Hammer Drill/Driver (Model 2904-20, bare tool only)
• All-metal belt clip

Warranty & Support

Milwaukee backs this tool with a 5 Year Limited Warranty covering defects in material and workmanship. Replacement parts lists and user guides are available through Milwaukee's support resources.

Frequently Asked Questions

Q: Does the Milwaukee M18 FUEL 1/2" hammer drill come with a battery?
A: No, the model 2904-20 is a bare tool that does not include batteries or a charger. It is designed for professionals who already own M18 system batteries or who want to select their preferred battery capacity separately. This tool works with all M18 REDLITHIUM battery packs in the Milwaukee system.

Q: What is the torque rating of the Milwaukee 2904-20?
A: The Milwaukee M18 FUEL 1/2" Hammer Drill/Driver delivers 1400 inch-pounds of torque. This torque output enables the tool to drill 2-9/16" self-feed holes in dense woods and drive large fasteners like lag bolts, making it the most powerful hammer drill in its class.

Q: How does the AutoStop Control Mode work?
A: AutoStop Control Mode detects when the drill bit binds up during operation and automatically stops the tool's rotation to prevent over-rotation injuries. The feature has the fastest reaction time in the industry for enhanced operator safety. A dedicated AutoStop indicator light on the foot of the tool illuminates when a protection event occurs, alerting you to the bind-up condition.

Q: What is the length of the Milwaukee M18 FUEL hammer drill?
A: The tool measures 6.9 inches in length, making it the most compact cordless hammer drill in its class. This compact design provides better access into tight spaces between studs and joists, and reduces operator fatigue during overhead applications or extended use periods.

Q: Can this drill be used for masonry work?
A: Yes, the Milwaukee 2904-20 includes a hammer drill mode specifically designed for drilling into brick, block, and concrete. This mode enables fast drilling in light masonry applications without requiring a separate rotary hammer, expanding the tool's versatility on multi-trade job sites.

Q: What type of chuck does the Milwaukee 2904-20 have?
A: The tool features a 1/2" all-metal ratcheting chuck with carbide teeth. This chuck design provides maximum durability, superior grip strength, and excellent bit retention compared to standard keyless chucks. The all-metal construction resists corrosion from job site exposure to moisture and chemicals.

Q: Is the Milwaukee M18 FUEL 2904-20 brushless?
A: Yes, this drill is equipped with Milwaukee's POWERSTATE Brushless Motor. The brushless motor design delivers more power under load, runs cooler during extended use, and provides longer motor life compared to brushed motors, while also maximizing runtime per battery charge.

Q: What is the warranty period for the Milwaukee 2904-20?
A: Milwaukee provides a 5 Year Limited Warranty on the M18 FUEL 1/2" Hammer Drill/Driver. This warranty covers defects in materials and workmanship, reflecting Milwaukee's confidence in the tool's durability and performance for professional applications.

Q: What battery provides the best runtime with this hammer drill?
A: Milwaukee states that this drill achieves unmatched runtime performance when paired with XC5.0Ah batteries or higher capacity M18 REDLITHIUM battery packs. Higher capacity batteries deliver more work per charge, which is particularly important during demanding applications like drilling large diameter holes or driving numerous fasteners.

Q: Does the Milwaukee 2904-20 have an LED light?
A: Yes, the tool includes an integrated LED light that improves visibility in low-light work situations such as crawl spaces, attics, mechanical rooms, and unfinished framing areas. The light activates during tool operation to illuminate the work surface directly in front of the chuck.