M12 FUEL™ 1/2" Drill/Driver

The Milwaukee 3403-20 M12 FUEL™ 1/2" Drill/Driver is a compact, high-performance cordless drill designed for professionals and serious DIY users who need maximum access in tight spaces without sacrificing drilling and driving power. It is part of Milwaukee’s M12 FUEL platform, known for delivering near full-size performance in a subcompact 12V form factor.

Powered by a POWERSTATE™ brushless motor, this drill delivers up to 400 in-lbs of torque and high-speed drilling performance under load, allowing it to handle wood, metal, and general fastening tasks efficiently while staying lightweight and easy to control.

At only about 5.9 inches in length, it is one of the shortest 1/2" drill/drivers in its class, making it especially useful in confined areas like cabinets, framing cavities, electrical panels, and overhead work where larger 18V drills may not fit comfortably.

The tool uses an all-metal 1/2" chuck and all-metal gearcase, improving durability and bit retention under load, especially during repetitive drilling or driving in tougher materials. A mechanical clutch allows for controlled fastening, helping prevent overdriving screws in softer materials like trim or cabinetry.

REDLINK PLUS™ intelligence helps protect the tool and battery from overload and overheating while maintaining consistent performance during demanding use.

Key Features:

• POWERSTATE™ brushless motor for compact power and efficiency
• Up to 400 in-lbs torque
• Extremely compact ~5.9" length for tight spaces
• 1/2" all-metal chuck for durability and grip
• All-metal gearcase for long-term jobsite durability
• Mechanical clutch for controlled fastening
• REDLINK PLUS™ intelligence for overload protection
• Lightweight design for overhead and all-day use

Ideal For:

• Electrical and HVAC installs
• Cabinetry and finish carpentry
• Light framing and general construction
• Tight-space drilling where M18 tools won’t fit
• Mobile service and maintenance work