Description

Key Features

Serious Breakaway Power

The POWERSTATE brushless motor delivers up to 1,200 ft-lbs of fastening torque and 1,500 ft-lbs of nut-busting torque, giving this impact wrench the muscle for stubborn large fasteners without dragging out a corded tool.

Compact for the Class

At 8.59 inches long, the Milwaukee 2864-20 M18 FUEL impact wrench is built to reach lug nuts, structural bolts, and heavy equipment fasteners where larger high torque models can get awkward.

ONE-KEY Control

ONE-KEY lets you customize output, save up to four profiles to the tool, and track it through the app, which helps cut rework and gives crews better control over repeatable torque settings.

Overview

The Milwaukee 2864-20 M18 FUEL Impact Wrench w/ FREE 48-11-1850R M18 XC5.0 Battery is a cordless 3/4 inch high torque impact wrench kit built for heavy-duty fastening and bolt removal. This is a high torque impact wrench designed for loosening seized fasteners and driving large bolts. Model Number: 2864-20-48-11-1850R. If you work on truck lugs, structural steel, utility hardware, industrial maintenance, or equipment service, this setup gives you the power of Milwaukee’s M18 FUEL platform plus a 5.0Ah battery in one package.

What matters here is the balance of output and size. Milwaukee rates this tool at up to 1,200 ft-lbs of fastening torque and 1,500 ft-lbs of nut-busting torque, which puts it in the category contractors and mechanics look at when a standard mid torque tool is not enough. That means more confidence breaking loose rusted or over-tightened hardware and fewer situations where you need to step up to a corded impact wrench.

The other number worth paying attention to is the overall length. At 8.59 inches, the 2864-20 is compact for a high torque 3/4 inch impact wrench. On the job, that translates to better access around suspension components, service bodies, machinery guards, and congested structural connections. When you are trying to get square on a fastener in a cramped space, a shorter head length matters just as much as raw torque.

Milwaukee builds this tool around its POWERSTATE brushless motor and REDLINK PLUS intelligence. In plain terms, that means the motor is designed for heavy output and the electronics help protect both the tool and battery from overloading or overheating. That is not just a spec-sheet talking point. On repeated high-load fastening jobs, electronic protection helps keep the tool working consistently instead of cooking itself when pushed hard.

This model also stands out because it is ONE-KEY compatible. That gives you app-based tool tracking plus performance customization. You can save up to four custom profiles directly to the impact wrench, so the tool can be set up for specific fasteners or applications without needing to reconnect every time. For crews who care about repeatable torque behavior, reduced over-torque, and better accountability across multiple jobsites, that is a real advantage.

The 3/4 inch friction ring with thru-hole is another practical detail. It is built for quick socket changes while still giving you a secure connection. Milwaukee also adds a premium rubber overmold for comfort and durability in rough environments, plus an LED work light to help when you are under a vehicle, inside a plant, or working in low-light service conditions.

This kit includes the bare tool and one 48-11-1850R M18 REDLITHIUM XC5.0 Resistant Battery. Because it is part of the Milwaukee M18 System, it fits into a much bigger cordless platform with over 150 tools. That matters if you are already running M18 batteries and chargers, since you can keep everything on one battery system instead of mixing platforms.

Who should buy it? This setup makes the most sense for mechanics, fleet techs, ironworkers, industrial maintenance crews, utility contractors, and serious users who regularly deal with large stubborn fasteners. If your work lives in the range where a compact impact driver or smaller impact wrench taps out, the Milwaukee 2864-20 M18 FUEL impact wrench is the kind of tool that earns its keep fast.

Milwaukee 2864-20 M18 FUEL Impact Wrench in a Compact High Torque Package

This kit is aimed at users who need high torque cordless fastening without stepping up to a bulkier corded setup. You get the 3/4 inch impact wrench, ONE-KEY capability, and an included XC5.0 battery to get the tool into service right away.

• Up to 1,200 ft-lbs fastening torque and 1,500 ft-lbs nut-busting torque
• 8.59 inch overall length for access in tighter work areas
• ONE-KEY support for custom profiles, tracking, and tool management

What’s in the Box

• (1) Milwaukee 2864-20 M18 FUEL with ONE-KEY 3/4 in High Torque Impact Wrench with Friction Ring
• (1) Milwaukee 48-11-1850R M18 REDLITHIUM XC5.0 Resistant Battery

Key Specifications

Tool Type	3/4 in High Torque Impact Wrench
Drive Size	3/4 in
Chuck Type	Friction Ring with Thru-Hole
Fastening Torque	1,200 ft-lbs
Nut-Busting Torque	1,500 ft-lbs
Overall Length	8.59 in
Weight	8.0 lbs
Battery Included	M18 REDLITHIUM XC5.0 Resistant Battery

Compatibility

Battery Platform

Part of the Milwaukee M18 System and compatible with M18 batteries.

Tool Management Platform

ONE-KEY compatible for performance customization, tracking, and tool management through the app.

Socket Interface

Uses 3/4 inch impact sockets with a friction ring and thru-hole retention setup.

Built For

AutomotiveFleet MaintenanceIndustrial MaintenanceConstructionStructural FasteningEquipment Service

Pro Tip

If you bounce between different fastener sizes or service tasks, set up your most-used output settings in the four onboard ONE-KEY profiles. Once they are saved to the tool, you can switch jobs faster without pulling out your phone every time.

Tool Nut’s Take

Tool Nut’s Take

High Torque Without the Usual Bulk

The Milwaukee 2864-20 M18 FUEL Impact Wrench is the kind of cordless 3/4 inch gun you buy when large fasteners are a normal part of your week, not a once-in-a-while problem.

• Who it’s for: Mechanics, fleet techs, ironworkers, industrial crews, and contractors who need real breakaway torque for larger hardware.
• Why it stands out: You get strong 1,500 ft-lbs nut-busting torque, compact 8.59 inch length, and ONE-KEY control in one platform-friendly M18 package.
• Worth knowing: This bundle includes the XC5.0 battery, which is a nice head start, but the big story here is the tool itself and how much power Milwaukee packed into a shorter high torque body.

Common Questions

• Is this a high torque or mid torque impact wrench? This is a 3/4 inch high torque impact wrench designed for heavy-duty fastening and removal work.
• Does this tool support ONE-KEY? Yes. It is ONE-KEY compatible for tool tracking, management, and custom performance profiles.
• How much torque does it make? Milwaukee rates it at up to 1,200 ft-lbs of fastening torque and 1,500 ft-lbs of nut-busting torque.
• What battery system does it use? It is part of the Milwaukee M18 battery platform and this package includes one M18 REDLITHIUM XC5.0 Resistant Battery.