The Milwaukee 2401-20 M12 1/4 Inch Hex Screwdriver is a cordless screwdriver built for controlled fastening in tight spaces. This is a cordless screwdriver designed for precision fastening, light assembly, and everyday service work. Model 2401-20 is the bare tool version, so it makes the most sense for users who already own Milwaukee M12 batteries and chargers and want a lighter, more precise option than a full-size drill or impact driver.

What sets this tool apart is how it balances control and usable power. The variable-speed trigger and 0 to 500 RPM range give you the kind of pacing you want when you are setting device screws, cabinet hardware, access panels, and other fasteners that do not need the hard-hitting action of an impact driver. Milwaukee also gives it 15+1 clutch settings, which matters when you need repeatable screw depth and want to avoid chewing up finish materials or overdriving smaller fasteners.

For a compact driver, it still brings enough muscle to be useful on real work. With up to 175 in-lbs of torque, the tool can handle a wide range of common fastening tasks while staying easier to manage than a larger driver. That is the sweet spot here: enough output for day-to-day screwdriving, but with better finesse for trim, hardware, electrical devices, HVAC access panels, and punch-list work.

The body design is clearly aimed at jobsite practicality. Milwaukee calls out a slimmer, more ergonomic grip, and that is exactly what you want on a tool you may use all day. The compact length helps it reach into cabinets, corners, and service areas where a bigger tool gets awkward fast. A quick-change 1/4 inch hex chuck keeps bit swaps simple and lets you change bits one-handed, which is a real time saver when you are moving between screw types or working off a ladder.

Milwaukee also builds in the small features that keep the day moving. The onboard LED light helps when you are working inside cabinets, around electrical boxes, or in mechanical spaces with poor lighting. The fuel gauge gives you a quick battery check before you start a task, which helps cut down on mid-job interruptions. Two belt-clip positions also make it easier for both left- and right-handed users to carry the tool where it makes sense.

On the system side, this screwdriver runs on Milwaukee's M12 battery platform, so it drops right into an existing M12 setup. That is a big deal if you already use M12 inspection tools, installation tools, or compact drills and want to keep batteries and chargers standardized. Because this is tool only, you are not paying again for a battery and charger you may already have, but first-time M12 users should factor those into the total setup cost.

The Milwaukee 2401-20 M12 1/4 Inch Hex Screwdriver is a strong pick for electricians, HVAC techs, maintenance crews, cabinet installers, remodelers, and serious DIY users who do a lot of fastening and want more control than an impact driver gives. If your work involves repetitive screws, finished surfaces, or cramped spaces, this tool makes a lot of sense. If you mainly drive long structural fasteners, you will still want an impact driver. For precision-focused screwdriving, though, this one is right in its lane.

A smarter pick than a drill when fastening control comes first

The Milwaukee 2401-20 M12 1/4 Inch Hex Screwdriver is the kind of tool that makes everyday fastening easier because it stays compact, predictable, and easy to manage.

• Who it's for: Electricians, HVAC techs, cabinet installers, maintenance crews, remodelers, and M12 users who want a dedicated cordless screwdriver for precision fastening.
• Why it stands out: The 15+1 clutch, variable-speed trigger, compact body, and one-handed hex bit changes give it better finesse than a larger drill or impact driver for light to medium fastening work.
• Worth knowing: This is a bare tool and it is built for controlled screwdriving, not heavy structural fastening. If you already own M12 batteries, it is an easy add to the kit.

• What battery platform does this screwdriver use? It is part of the Milwaukee M12 system and uses M12 battery packs.
• Is this an impact driver? No. This is a cordless screwdriver designed for controlled fastening, with a 0 to 500 RPM range and 15+1 clutch settings.
• What size bits does it accept? It uses a 1/4 inch hex quick-change chuck.
• What is the warranty? Milwaukee lists a 5 Year Limited Warranty for model 2401-20.