The Milwaukee 2564-20 M12 FUEL 3/8 in Right Angle Impact Wrench is built for mechanics, service techs, and tradespeople who need real fastening power where a standard impact wrench will not fit. This is a right angle impact wrench designed for bolt removal and fastening in tight spaces. Model Number: 2564-20. The combination of a compact 2.2 in head profile, 3/8 in friction ring anvil, and up to 220 ft-lbs. of nut-busting torque makes it a practical choice for underbody work, engine bay access, and other cramped service areas.

What matters on the job is not just peak torque, but whether the tool can actually get on the fastener. Milwaukee built this cordless impact wrench around access first. The low-profile head lets you work in places where a pistol-grip impact wrench usually forces you into awkward angles or extra socket extensions. That saves setup time and gives you a more direct connection to the fastener, which usually means better control and less frustration when space is limited.

The POWERSTATE brushless motor and 4-Mode Drive Control give this tool a wider working range than a one-speed specialty tool. Modes 1 through 3 let you step up from controlled fastening to faster bolt work, with a top speed range of 0 to 3,000 RPM and up to 3,600 impacts per minute. Mode 4 is the one many users will care about most in real service work. Auto Shut-Off mode in forward helps prevent overtightening by limiting torque to no more than 15 ft-lbs., while Bolt Removal Mode in reverse slows the tool down after the fastener breaks loose so it does not run away on you.

Milwaukee also built in features that make sense for daily use. REDLINK PLUS Intelligence is there to protect the tool from overload, overheating, and over-discharge, which matters when you are leaning on a compact tool for hard removals. The impact mechanism is designed to reduce kickback, and the premium rubber overmold helps when your hands are oily, dirty, or working around rough metal surfaces. There is also an LED light to help when the fastener is buried in a dark wheel well, frame rail, or mechanical compartment.

As part of the M12 platform, this Milwaukee right angle impact wrench runs on Milwaukee M12 REDLITHIUM battery packs, which means it fits neatly into an existing M12 setup if you already carry Milwaukee compact cordless tools. This tool-only version does not include a battery or charger, so it makes the most sense for users who are already on the M12 battery system and want to add a specialty fastening tool without buying another platform.

Who should buy it? If you work in automotive repair, fleet maintenance, equipment service, HVAC install, or general mechanical fastening where clearance is always the problem, this tool makes a strong case for itself. It is especially useful for users who need more torque than a ratchet but cannot fit a traditional impact wrench. If you mainly work in wide-open spaces, a standard impact may still be the faster choice. But if your day regularly involves tight-access bolts, the Milwaukee 2564-20 M12 FUEL 3/8 in Right Angle Impact Wrench is exactly the kind of tool that saves time because it gets into places other tools cannot.

Milwaukee 2564-20 M12 FUEL 3/8 in Right Angle Impact Wrench Means Business in Tight Access Work

This is the kind of specialty cordless impact wrench that stops being a specialty the second you use it in the right spot.

• Who it's for: Techs and tradespeople dealing with underbody bolts, engine bay fasteners, tight framing cavities, and mechanical spaces where a regular impact wrench cannot line up.
• Why it stands out: The mix of 220 ft-lbs. of breakaway torque, a 2.2 in head profile, and smart control modes gives it a real advantage over bulkier pistol-grip tools.
• Worth knowing: This is a tool-only setup, so it is best for users already on M12. If you rarely work in tight access areas, you may not need a dedicated right angle model.

• What battery platform does this tool use? It runs on the Milwaukee M12 battery platform and is compatible with M12 REDLITHIUM battery packs.
• What size socket drive does it have? It uses a 3/8 in friction ring anvil.
• Does it have speed and control modes? Yes. It has 4-Mode Drive Control, including Auto Shut-Off in forward and Bolt Removal Mode in reverse.
• Is ONE-KEY enabled? No. Milwaukee lists this model as not ONE-KEY enabled.