Consumer Reports reviewed the Milwaukee 3403-22 as a mid-tier M12 cordless drill and impact driver, noting its brushless motor delivers better efficiency than previous brushed models. The tool features a compact design that makes it suitable for detailed work in tight spaces, with a 1/4-inch hex chuck for versatile bit compatibility. While it offers lighter weight and easier handling thanks to the M12 voltage system, reviewers noted it lacks the power needed for heavy-duty construction tasks. This makes it well-suited for DIY enthusiasts and professionals who need a versatile, lightweight tool for general-purpose drilling and driving applications.

Full review
Compact size breakthrough
The Milwaukee 3403-22 represents a significant reduction in size for the M12 platform, measuring just 5.9 inches in length for the hammer drill model. This compact design positions it among the smallest cordless drills available, with the impact driver model clocking in at 4.3 inches. The reduction in size comes from a combination of engineering improvements and component miniaturization that Milwaukee has refined through multiple generations. Reviewers noted that the new design achieves a balance between portability and performance that previous models in the M12 line did not match. The 3403-22's tool-only weight of 2.1 pounds for the hammer drill and 1.6 pounds for the impact driver makes it particularly suitable for users who need to work in tight spaces or carry tools for extended periods.
The smaller footprint is not just cosmetic—reviewers found that the reduced dimensions do not compromise functionality. The 3403-22's 1/2-inch all-metal chuck, a feature that sets it apart from smaller competitors, allows for larger bit capacity and more robust drilling applications. This is particularly evident when using spade bits up to 1 1/4 inches or auger bits up to 1 inch. The tool's design also includes a 2-speed gearbox switch and mechanical clutch, which allows for fine-tuned control during operation. These features are essential for maintaining precision while working in confined areas where larger tools would be impractical.
Torque and performance metrics
The Milwaukee 3403-22 delivers impressive torque specifications that reflect its intended use in demanding applications. The hammer drill model achieves 400 in-lbs of torque, which is a notable increase over previous models in the M12 line. This torque level allows for effective drilling through materials like wood and masonry, with recommended capacities including 3/8-inch twist bits in masonry and 1/2-inch twist bits in steel. The impact driver model provides 1,500 in-lbs of peak torque, which is sufficient for driving large fasteners and handling heavy-duty tasks. These torque levels are particularly relevant for users who need to work with larger bits or fasteners, as they provide the power necessary for efficient operation without requiring a larger, more cumbersome tool.
Performance testing revealed that the 3403-22 maintains consistent power delivery across both tools, with the hammer drill operating at 1,550rpm in low speed and 22,500bpm in high speed. The impact driver delivers 3,600rpm and 4,000 impacts per minute, which are competitive figures for a subcompact tool. The 3403-22's brushless motor technology ensures efficient power conversion and extended runtime, particularly when paired with Milwaukee's XC4.0 batteries. These performance metrics make the 3403-22 a strong contender for professionals who require reliable, high-performance tools in tight working environments.
Lighting and visibility features
One of the most noticeable improvements in the Milwaukee 3403-22 is the enhanced lighting system on the impact driver model. The tool features a tri-LED light array surrounding the collet, which provides significantly better visibility compared to previous models. This lighting system eliminates shadows cast by traditional single LEDs, making it easier to see the bit and work area, especially in low-light conditions. Reviewers emphasized that this feature is particularly beneficial for outdoor work, where early morning or evening tasks are common. The improved lighting helps reduce errors and improves overall work quality, especially when working with small fasteners or in confined spaces where visibility is limited.
The hammer drill model also includes an LED light near the trigger, though it is less prominent than the impact driver's lighting system. This light provides adequate illumination for basic tasks but does not offer the same level of visibility as the impact driver's tri-LED array. The lighting design on both tools reflects Milwaukee's attention to user experience, recognizing that visibility plays a crucial role in precision work. The impact driver's lighting system, in particular, has been praised for its ability to illuminate the work area without casting shadows, which is a common issue with older models.
Battery and charging compatibility
The Milwaukee 3403-22 is designed to work seamlessly with the M12 platform's battery ecosystem, supporting both CP2.0 and XC4.0 batteries. The inclusion of a charger in the combo kit ensures that users can maintain optimal battery performance and quickly recharge tools when needed. The XC4.0 battery provides extended runtime, particularly beneficial for users who work in demanding environments where frequent recharging is impractical. Reviewers noted that the battery compatibility allows for flexibility in tool usage, as users can switch between different battery types based on their specific needs. The Redlink Plus intelligence system, which is part of the M12 platform, enables tools to communicate with batteries and optimize performance based on battery capacity.
The battery system also includes a soft contractor bag and M12 charger, which adds to the overall value of the combo kit. The charger supports both battery types and provides a convenient way to maintain battery health. Users appreciate the ability to use either battery type without compromising tool performance, making the 3403-22 a versatile option for various applications. The battery life is particularly impressive when using the XC4.0 battery, which offers extended runtime compared to the CP2.0 battery. This makes the 3403-22 suitable for longer work sessions or projects where uninterrupted operation is essential.
Ergonomic design and handling
The ergonomic design of the Milwaukee 3403-22 prioritizes user comfort and control during extended use. The lightweight construction, combined with a balanced weight distribution, reduces fatigue and allows for precise handling. The impact driver model includes a belt clip that can be positioned on either side, providing flexibility for different user preferences and work environments. This feature is particularly useful for professionals who need to keep their tools accessible while working in various positions. The tool's grip design and overall balance contribute to a comfortable user experience, especially during repetitive tasks or extended work periods.
The hammer drill model also benefits from ergonomic considerations, with a comfortable grip and balanced weight distribution that reduces hand fatigue. The tool's design includes a soft grip section that enhances control and reduces vibration transmission to the user's hands. The 1/2-inch chuck, while slightly larger than typical subcompact tools, provides better stability and control when using larger bits. This design choice reflects Milwaukee's commitment to balancing compactness with functionality, ensuring that users can maintain control and precision even when working with larger tools.
Durability and build quality
The Milwaukee 3403-22 demonstrates high build quality through its use of durable materials and robust construction. The all-metal chuck on both tools ensures longevity and resistance to wear, particularly important for heavy-duty applications. The impact driver model's 1,500 in-lbs peak torque requires a sturdy construction to handle the stress, and reviewers noted that the tool maintains its integrity under demanding conditions. The materials used in the construction contribute to the tool's durability, making it suitable for professional use in various environments. The tool's components are designed to withstand the rigors of daily use while maintaining performance over time.
The 3403-22's construction also includes features that enhance its longevity, such as reinforced internal components and protective coatings that resist corrosion and wear. The tool's design reflects Milwaukee's reputation for producing reliable tools that can withstand demanding work conditions. The impact driver's belt clip and overall construction are particularly praised for their durability and ability to maintain functionality even after extended use. These quality features make the 3403-22 a solid investment for professionals who require reliable tools in their daily work.
Comparison to previous models
The Milwaukee 3403-22 represents a significant evolution from previous M12 models, particularly in terms of size and efficiency. Compared to earlier generations of the M12 platform, the 3403-22 achieves a reduction in overall dimensions while maintaining or improving performance specifications. The impact driver model's torque has increased from 1,300 in-lbs to 1,500 in-lbs, while maintaining the same 4,000 impacts per minute. This improvement in torque, combined with the compact design, makes the 3403-22 a more capable tool than its predecessors. The 3403-22's brushless motor technology also offers better efficiency and longer runtime compared to older brushed models.
The 3403-22's performance improvements are particularly evident when compared to the M12 Fuel Hammer Drill (2904), which is designed for more demanding applications. While the 2904 offers higher torque and runtime, the 3403-22 provides a more compact solution for users who need to work in tight spaces or prefer a lighter tool. The 3403-22's design focuses on optimizing performance within a smaller footprint, making it ideal for users who prioritize portability without sacrificing essential functionality. This balance between size and performance makes the 3403-22 a strong option for professionals who need versatility in their tool selection.
Strengths
- +Brushless motor provides improved efficiency and runtime compared to brushed models
- +Compact design suitable for tight spaces and detailed work
- +Includes 1/4-inch hex chuck for versatile bit compatibility
- +M12 voltage system offers lighter weight and easier handling than larger platforms
Watch-outs
- −Limited power output compared to higher-tier M12 models like 3404-20
- −Not ideal for heavy-duty construction applications
How it compares
The Milwaukee 3403-22 stands out from the DeWalt DCD701F2 and DCD703F1 for its brushless motor efficiency, but it lacks the raw power of the Milwaukee M12 Fuel model. Unlike the Skil Pwrcore 12-Volt Cordless Drill Kit, it doesn't feature a hybrid chuck, and compared to the Makita FD07R1, it's less compact and ergonomic. However, it's more versatile than the Hercules HCB91K1 due to its 1/4-inch hex chuck and better overall performance.
Rating sources
“In my opinion, this is the reigning king of 12vt drills. That's how impressive this drill is historically.”
Our 4.5 score is the average of the 1 scored review above; 2 more reviewed it without printing a score and are not in the average. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.