The Milwaukee M12 Subcompact Brushless 3/8 in. Drill/Driver is a compact 12V cordless drill built for access, low fatigue, and everyday drilling and fastening work. Milwaukee positions it as a lighter and shorter option for overhead and tight-space applications, with up to 350 in-lbs of torque, a brushless motor, and a 3/8 in. all-metal chuck. It is part of the broader M12 battery system and is sold as a bare tool, making it most useful to buyers who already own compatible M12 batteries and charger.
Does the 3401-20 come with batteries or a charger?
No. The 3401-20 is a bare tool, so compatible M12 batteries and charger are sold separately. It is best suited to buyers already on Milwaukee's 12V platform.
How compact is the 3401-20?
Milwaukee's overview positions it as a very compact drill/driver at about 5.4 inches long. That shorter body is aimed at improving access and reducing fatigue in overhead and tight-space work.
What chuck size does the 3401-20 use?
It uses a 3/8 in. all-metal chuck. That makes it more compact than larger 1/2 in. drill platforms while still supporting many common drilling and fastening jobs.
How much torque does the 3401-20 provide?
Milwaukee's product overview calls out 350 in-lbs of torque. That puts it in the compact general-purpose class rather than as a full-size heavy-duty drill replacement.
Who is the 3401-20 best for?
It is a good fit for electricians, HVAC techs, maintenance users, and general buyers who want a light compact drill for tight work areas. Its main appeal is size and control, not maximum drilling muscle.
Is the 3401-20 a hammer drill?
No. This model is a standard drill/driver without hammer mode. It is intended for general drilling and fastening rather than masonry drilling.
# Milwaukee® M12™ Subcompact Brushless 3/8 in. Drill/Driver **Model:** `3401-20` **Brand:** Milwaukee **Category:** Drill Driver > The Milwaukee M12 Subcompact Brushless 3/8 in. Drill/Driver is a compact 12V cordless drill built for access, low fatigue, and everyday drilling and fastening work. Milwaukee positions it as a lighter and shorter option for overhead and tight-space applications, with up to 350 in-lbs of torque, a brushless motor, and a 3/8 in. all-metal chuck. It is part of the broader M12 battery system and is sold as a bare tool, making it most useful to buyers who already own compatible M12 batteries and charger. ## Specifications | Attribute | Value | |---|---| | Product Type | Drill/Driver | | Voltage (V) | 12 | | Cordless / Corded | Cordless | | Power Source | Battery | | Motor Type | Brushless | | Tool Only | Yes | | Batteries Included | 0 | | Charger Included | No | | Piece Count | 1 | | Length (in.) | 5.4 | | Battery Platform | M12™ | | Chuck Type | All Metal | | Chuck Size (in.) | 0.375 | | Max Speed (RPM) | 1,550 | | Clutch Settings | 12 | | Speed Settings | 2 | | Hammer Function | No | | One Key Enabled | No | | Max Torque (in-lbs) | 350 | | Warranty | 5-year limited (tool) | ## What's Included - (1) M12™ Subcompact Brushless 3/8 in. Drill/Driver (3401-20) Source: https://www.jaspecs.com/milwaukee/drill-driver/3401-20-m12-subcompact-brushless-3-8-drill-driver/