Milwaukee 3401-20 M12 Subcompact Brushless Drill Driver
- 350 inch pounds of torque
- 12 volt M12 subcompact brushless, 2 amps
- 3/8 inch drill/driver, 0.38 inch capacity in wood and metal
- 1550 rps maximum speed as listed
- 1.6 pounds
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A subcompact brushless drill/driver with a respectable torque rating for its weight. The speed unit and the kit contents in the listing are unclear.
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ASIN: B0FHHB214DModel: 3401-20Category: Drills
Overview
A brushless motor in a subcompact body drives the Milwaukee 3401-20, a three-eighths inch drill/driver on the M12 system. Wood and metal capacity are stated equally, and torque is the headline rating.
Small size and low weight are the reason to look at it, and the combined drilling capacity suits household work. The speed figure is shown in revolutions per second, which looks like a data slip, and no dimensions are given.
Who it's for
People already holding M12 batteries who work in tight spaces or overhead. Buyers who must compare size will find no dimensions listed.
Pros and cons
- Brushless motor named
- Torque rating stated
- Equal wood and metal capacity
- Manufacturer warranty listed
- Speed unit looks incorrect
- Battery inclusion unclear
Performance notes
Torque decides how hard a bit can be pushed, and a brushless motor wastes less energy as heat. Drilling capacity sets the largest hole in wood or metal. Battery capacity, not listed, sets run time per charge.
Specifications
| Brand | MILWAUKEE |
|---|---|
| Model | 3401-20 |
| Dimensions & fit | |
| Item weight | 1.6 pounds |
| Capacity & performance | |
| Maximum Rotational Speed | 1550 rps (as listed) |
| Drilling Capacity Metal | 0.38 inches |
| Drilling Capacity Wood | 0.38 inches |
| Power & efficiency | |
| Amperage | 2 amps |
| Voltage | 12 volts |
| Construction & materials | |
| Color | Black and red |
| Included components | |
| Included Components | Milwaukee Electric - M12 SUBCOMPACT BRUSHLESS 3/8 |
| Warranty & support | |
| Manufacturer Warranty Description | Manufacturer warranty |
| Other details | |
| Drill Type | Combination drill |
| Torque | 350 inch poundshigher than 67% of 106 drills |
| Item Type Name | M12 subcompact brushless 3/8 inch drill/driver |
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Frequently asked questions
Is the speed of the Milwaukee 3401-20 really 1550 rps?
That is how the listing writes it. The unit looks like a typo for RPM, so confirm with the maker.