Milwaukee 3450-20 M12 FUEL Subcompact Brushless 1/4″ Hex Impact Driver – Tool Only

The Milwaukee 3450-20 M12 FUEL™ Subcompact Brushless 1/4″ Hex Impact Driver is the lightest and most compact cordless impact driver available, delivering powerful performance in a small package. Measuring just 4.3 inches in length and 2.0 inches in width, it provides superior access to tight spaces, making it an essential tool for professionals working in confined areas. Weighing only 1.7 lbs with a battery, it minimizes fatigue while maintaining high productivity. The brushless motor generates up to 1,100 in-lbs of torque and 3,000 RPM, while the 4,100 impacts per minute allow for fast driving speeds. An internal metal gearcase ensures durability, and Milwaukee’s REDLINK™ Intelligence system optimizes performance by preventing overload and overheating when paired with M12™ REDLITHIUM™ batteries (sold separately). As part of the M12™ system, this tool is compatible with over 150 Milwaukee solutions, making it a versatile addition to any toolbox.

Milwaukee M12 FUEL Subcompact 1/4″ Hex Impact Driver At a Glance

Subcompact Design: Just 4.3” long and 2.0” wide, allowing for superior access in tight workspaces.
Lightweight & Portable: Weighs only 1.7 lbs with a battery for easy overhead work and reduced fatigue.
Brushless Motor: Delivers up to 1,100 in-lbs of torque for efficient fastening applications.
Fast Driving Speeds: Reaches up to 3,000 RPM and 4,100 impacts per minute for maximum productivity.
Internal Metal Gearcase: Ensures long-term durability for high-impact tasks.
REDLINK™ Intelligence: Advanced overload protection monitors temperature and prevents damage.
On-Tool Battery Fuel Gauge: Displays remaining charge for better job site efficiency.
All-Metal Belt Clip: Securely attaches to tool belts for convenient carrying.
M12™ System Compatibility: Works with all Milwaukee M12™ batteries and chargers.

Markets

Electricians: Compact enough to work behind panels and inside junction boxes for fastening electrical components.
HVAC Technicians: Easily fits in tight ductwork and behind units to secure brackets, panels, and fittings.
Automotive Mechanics: Small size and high torque make it perfect for dashboard, undercarriage, and engine work.
Contractors & Construction Workers: Speeds up framing, drywall, and other fastening applications on the job site.
Facility Maintenance Crews: Lightweight and portable for quick fixes and installation of hardware.
DIYers & Homeowners: Simple to use for furniture assembly, cabinetry, and general home repairs.
Woodworkers & Cabinet Makers: Delivers precision and power for building and assembling furniture and custom cabinetry.

Designed for professionals who require power in a compact design, this impact driver is ideal for electricians, HVAC technicians, and mechanics who frequently work in confined spaces. Contractors will appreciate the speed and efficiency it brings to fastening tasks, while maintenance workers and facility teams will benefit from its lightweight portability for quick repairs. DIYers and home renovators will find it easy to handle, whether assembling furniture, installing cabinetry, or completing home improvement projects. Its subcompact size, combined with high torque and fast driving speeds, makes it a go-to tool for anyone needing precision and power in one efficient package.

Milwaukee 3450-20 M12 FUEL Subcompact Brushless 1/4″ Hex Impact Driver – Tool Only Features

Subcompact Design: Best access in tight spaces at 4.3” long and 2.0” wide
Lightweight and Portable: only 1.7 lbs. with battery pack for overhead work
Internal Metal Gearcase for increased durability
Brushless Motor: Up to 1100 in-lbs. of torque
Fast driving: 4100 Impacts per minute and 3000 Rotations per minute
REDLINK Intelligence™: Advanced overload protection defends against heavy duty applications and monitors the temperature to prevent damage and ensure maximum tool & battery life
REDLITHIUM™ Battery: Superior pack construction, electronics, and performance deliver more work per charge and more work over pack life than any battery on the market
5 year tool warranty
Includes 3450-20 M12 Subcompact Brushless 1/4″ Hex Impact Driver with belt clip. Battery and Charger sold separately
Compatible with the Milwaukee® Accessory Bit holder 49-16-3697
On tool battery fuel gauge
Part of the M12™ System, featuring over 150+ tools

Milwaukee 3450-20 M12 FUEL Subcompact Brushless 1/4″ Hex Impact Driver – Tool Only Includes

(1) M12 FUEL™ 1/4″ Hex Impact Driver (3450-20)
(1) Belt Clip

Milwaukee 3453-20 M12 FUEL Subcompact Brushless 1/4″ Hex Impact Driver – Tool Only Specifications

Manufacturer Part Number: 3450-20
Drive Size: 1/4″ Hex
Torque: 1,100 in-lbs
Impacts per Minute: 4,100
No-Load Speed: 3,000 RPM
Length: 4.3 in
Weight (Tool Only): 1.3 lbs
Weight (With Battery): 1.7 lbs
Power Source: Cordless (M12™ Battery Required, Not Included)
Material: Metal & Plastic Housing
LED Light: Yes
Warranty: 5-Year Tool Warranty

Milwaukee 3450-20 M12 FUEL Subcompact Brushless 1/4″ Hex Impact Driver – Tool Only Warranty

Milwaukee’s 5 Year Limited Warranty

Why Professionals Choose the Milwaukee M12 FUEL Subcompact Brushless 1/4″ Hex Impact Driver

The Milwaukee M12 FUEL™ Subcompact Brushless 1/4″ Hex Impact Driver is a must-have for professionals and DIYers who need power, speed, and control in tight spaces. Its high-speed impact performance, compact build, and user-friendly features make it ideal for fastening applications in construction, automotive, and maintenance settings. Whether driving screws, assembling parts, or securing fixtures, this impact driver delivers the efficiency and durability needed for demanding tasks. Compatible with Milwaukee’s extensive M12™ lineup, it’s a reliable choice for anyone looking to expand their cordless tool collection.