The Milwaukee 48-22-2921 Multi-Nut Driver W/ SHOCKWAVE Impact Duty (flip) Magnetic Nut Drivers is a 6-in-1 multi-nut driver built for driving hex nuts in common trade sizes. This is a multi-nut driver designed for fastening hex head hardware in electrical, mechanical, maintenance, and general installation work. Model Number: 48-22-2921. If you are constantly moving between different nut sizes, this setup cuts down on pocket clutter and speed bumps at the bench or on the job.

Instead of carrying a full stack of individual nut drivers, you get six sizes in one tool: 1/4 inch, 5/16 inch, 3/8 inch, 7/16 inch, 1/2 inch, and 9/16 inch. That matters when you're hanging strut, tightening anchors, assembling equipment, or running common fasteners where switching sizes is part of the job. The easy-access on-board storage keeps the nut drivers organized inside the handle, so the right size is close at hand instead of buried in a bag.

The removable SHOCKWAVE Impact Duty 1/4 inch magnetic hex shank is the part that makes this Milwaukee driver more useful than a basic multi-driver. You can run it as a hand tool when you want control and feel, then move the nut driver setup into a compatible impact driver when speed matters more. For installers and service techs, that kind of flexibility saves time because the same set covers hand fastening and power fastening without needing separate accessories.

Milwaukee also built in a QUIK-CLEAR cleaning mechanism for fast debris removal from the magnet. That's a practical feature, not a throwaway bullet point. Metal shavings and jobsite debris can clog magnetic drivers and make hardware seat poorly. Being able to clear the magnet quickly helps keep retention reliable, especially if you're working around self-tapping screws, steel hardware, or dirty site conditions.

Day-to-day usability is clearly part of the design. High-contrast size markings make it easier to identify the correct driver at a glance, which is useful in low light, overhead work, or when you're moving fast through repetitive fastening tasks. The anti-peel cushion grip gives the handle a more secure feel and should hold up better over time than handles that start to break down after hard use.

At 8.25 inches long and about 0.51 lb, this is compact enough to live in a pouch, drawer, or service bag without taking up much room. The steel construction fits the intended use as a durable fastening tool, and the overall package is aimed at users who need versatility more than a large dedicated driver set. It is not trying to replace every nut driver you own. It is trying to cover the six sizes you reach for most often, with fewer loose pieces to keep track of.

This Milwaukee multi-nut driver makes the most sense for electricians, HVAC techs, maintenance crews, panel builders, appliance installers, and serious DIY users who work with hex hardware on a regular basis. If you want a compact fastening solution that works as both a hand driver and an impact driver accessory, this one earns its keep. If you mostly use one single size all day, a dedicated nut driver may still be faster. But for mixed hardware work, this is the smarter setup.

A smart grab-and-go fastener tool

The Milwaukee 48-22-2921 Multi-Nut Driver W/ SHOCKWAVE Impact Duty (flip) Magnetic Nut Drivers is the kind of tool that makes a lot of sense the first week you own it.

• Who it's for: Techs, installers, and DIY users who deal with multiple hex fastener sizes and want fewer loose tools in the bag.
• Why it stands out: The combination of on-board storage, six useful nut driver sizes, and a removable impact-rated 1/4 inch hex shank makes it more flexible than a standard multi-driver.
• Worth knowing: This is a versatility play. If one size lives in your hand all day, a dedicated nut driver may still be quicker. If your work changes size to size, this one is a better bet.

• How many nut driver sizes are included? Six sizes are included: 1/4 inch, 5/16 inch, 3/8 inch, 7/16 inch, 1/2 inch, and 9/16 inch.
• Can this be used with an impact driver? Yes. It features a removable SHOCKWAVE Impact Duty 1/4 inch magnetic hex shank that is impact rated.
• Does it have on-board storage? Yes. The handle has easy-access on-board storage to keep the nut drivers organized.
• What is the overall length? The tool measures 8.25 inches long.