Milwaukee M12 Subcompact Brushless 1/4-in. Hex Impact Driver 2.0Ah Kit (3450-22)

Key Features

Fits Tight Spots

At just 4.3 inches long and 2.0 inches wide, this impact driver gets into cabinet boxes, electrical corners, and other cramped spots where a larger tool starts fighting you.

Real Driving Power

The brushless motor delivers up to 1,100 in-lbs of torque with up to 3,000 RPM and 4,100 IPM, so it drives common fasteners quickly without giving up the compact size.

Light Kit to Carry

At only 1.7 lbs with battery, the Milwaukee 3450-22 M12 Subcompact Brushless 1/4" Hex Impact Driver Kit is easy to use overhead and easy to keep on you for service work and punch-list jobs.

Overview

The Milwaukee 3450-22 M12 Subcompact Brushless 1/4" Hex Impact Driver Kit is a cordless fastening kit built for electricians, cabinet installers, maintenance techs, remodelers, and any pro who needs a compact driver that still gets real work done. This is a cordless impact driver designed for driving screws and fasteners in tight spaces. Model Number 3450-22. The big reason this kit matters is simple: it gives you the access and carry comfort of a small 12V tool without feeling underpowered for everyday fastening work.

Milwaukee rates this tool at up to 1,100 in-lbs of torque, up to 3,000 RPM, and up to 4,100 impacts per minute. On the job, that means quicker starts, faster seating, and less waiting around on repetitive fastening tasks. If you're installing hardware, running self-tapping screws, assembling cabinets, working inside panels, or handling service calls, those numbers translate into more fasteners driven in less time.

The size is what separates this driver from bulkier options. At only 4.3 inches long and 2.0 inches wide, it is built to reach fasteners that are tucked into corners, behind framing members, inside casework, or near obstacles where a larger impact driver forces you to change your angle or grab a right-angle attachment. That shorter nose also gives you better line of sight on the bit, which helps when you are starting screws one-handed or working in finished spaces where control matters.

Weight matters too, especially for overhead work and service work where the tool stays in your hand all day. Milwaukee lists it at 1.3 lbs bare and 1.7 lbs with battery. That lighter setup reduces fatigue when you're hanging fixtures, installing electrical hardware, or running repeated fasteners above shoulder height. It also makes this a strong choice for techs who want a driver that stays clipped to a belt or rides in a small service bag without adding much bulk.

Milwaukee backed the compact size with a brushless motor and an internal metal gearcase. The brushless motor is there for efficiency, runtime, and lower wear compared to a brushed design. The metal gearcase matters because small tools still take real abuse, especially when they live in a van, get used for punch work, and spend time bouncing around a job bag. This one is clearly built to be more than a light-duty homeowner driver.