The Milwaukee M12 FUEL™ 1/2″ Hammer Drill (Model 3404-20) delivers unmatched power, speed, and compact design, making it the most capable subcompact drill/driver in its class. Engineered with the POWERSTATE™ Brushless Motor, this tool provides the fastest speed under load and the highest power output in the subcompact category, allowing professionals to tackle a wide range of drilling and fastening applications with ease. At just 5.9 inches in length, the 3404-20 is the shortest 1/2″ hammer drill in its class, offering superior access in tight spaces and enhanced portability. The integrated REDLINK PLUS™ Intelligence system ensures optimal performance and thermal protection, enabling users to maintain peak speed and power even under heavy load. Compatible with M12 REDLITHIUM™ 2.0Ah and 4.0Ah battery packs, this hammer drill delivers more work per charge and longer battery life than competitive models. Built with an all-metal 1/2″ chuck and all-metal gearcase, it offers best-in-class durability, while the mechanical clutch ensures consistent torque for precise fastening. As part of the Milwaukee M12™ System, the 3404-20 works seamlessly with over 125 compatible tools, making it a versatile addition to any professional’s or DIY enthusiast’s toolkit.
Model 3404-20 – Milwaukee’s most powerful subcompact 1/2″ hammer drill POWERSTATE™ Brushless Motor for unmatched speed and performance Shortest in class at only 5.9″ for superior access in tight spaces REDLINK PLUS™ Intelligence for advanced thermal and overload protection All-metal 1/2″ chuck and gearcase for maximum durability Mechanical clutch delivers consistent torque for fastening Compatible with M12 REDLITHIUM™ 2.0Ah and 4.0Ah batteries for extended runtime Part of the M12™ System – works with 125+ Milwaukee tools
