Milwaukee 3450-20 M12 Subcompact 1/4 in Hex Impact Driver
- Torque: 1100 in-lb
- Maximum Torque: 1100 in-lb
- Power Source: Battery
- Maximum Rotational Speed: 3000 rpm
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A light 1.3 pound, 12V impact driver at 3000 RPM, sold bare. A sensible add-on for Milwaukee M12 owners rather than a standalone starter tool.
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ASIN: B0FBMN6J8FModel: 3450-20Category: Impact Drivers & Wrenches
Overview
The Milwaukee 3450-20 is a 12V battery powered impact driver rated to 3000 RPM and weighing just 1.3 pounds. The -20 ending follows Milwaukee's usual pattern for a bare tool, sold without battery or charger.
At 1.3 pounds this is built for one-handed work overhead or in cramped spots, trading some top-end speed for lighter weight and Milwaukee's 12V system. The 2 by 6 by 6 inch dimensions describe a short, stubby driver rather than a long-reach tool. As with other bare-tool listings, it only pays off if you already own Milwaukee's M12 batteries.
- 12V battery powered
- 3000 RPM, 2 amp rating
- 1.3 pounds
- Bare tool, model ends in -20
Who it's for
Milwaukee M12 owners who want a light second impact driver for overhead or tight-clearance work. Not the choice for buyers needing maximum driving speed or starting a battery platform from zero.
Pros and cons
- 1.3 pounds, light for overhead work
- Compact 2 x 6 x 6 inch body
- Fits existing Milwaukee M12 batteries
- Sold as a bare tool, no battery or charger
- 3000 RPM is lower than some larger impact drivers
Performance notes
3000 RPM on the 12V platform trades some speed for a lighter, more compact tool at 1.3 pounds, which pays off in overhead work or tight clearances where a heavier driver tires the wrist. The 2 by 6 by 6 inch body keeps reach short, useful in cabinets and enclosed spaces.
Specifications
| Brand | MILWAUKEE |
|---|---|
| Model | 3450-20 |
| Dimensions & fit | |
| Maximum Chuck Size | 6.35 Millimeters |
| Item Weight | 1.3 poundslower than 86% of 184 impact drivers & wrenches |
| Item Dimensions L X W X H | 2 × 6 × 6 inches |
| Capacity & performance | |
| Maximum Rotational Speed | 3000 rpm |
| Drilling Capacity Wood | 0.2 inches |
| Drilling Capacity Metal | 0.2 inches |
| Power & efficiency | |
| Power Source | Battery |
| Voltage | 12 voltslower than 76% of 171 impact drivers & wrenches |
| Amperage | 2 amps |
| Battery Type | Lithium-Ion |
| Construction & materials | |
| Material Type | Metal |
| Compatibility & installation | |
| Compatible Devices | M12 System Devices |
| Included components | |
| Unit Count | 1 |
| Included Components | [Battery, Charger] Not Included |
| Other details | |
| Torque | 1100 in-lblower than 76% of 75 impact drivers & wrenches |
| Maximum Torque | 1100 in-lblower than 79% of 68 impact drivers & wrenches |
| Drill Type | Impact Driver |
Closest rivals on specs
KIMO 3302 12V Cordless Electric Ratchet Wrench Set- Item Weight 1.3 vs 1.72 pounds (-24%)
Milwaukee 2551-22 M12 Fuel Surge Hydraulic Driver Kit- Item Weight 1.3 vs 2 pounds (-35%)
ACDelco ARI12105T G12 12V Impact Driver- Maximum Torque 1100 vs 982 in-lb (+12%)
- Item Weight 1.3 vs 2.04 pounds (-36%)
- Torque 1100 vs 984 in-lb (+12%)
Frequently asked questions
Does the Milwaukee 3450-20 come with a battery?
No, the -20 ending is Milwaukee's convention for a bare tool sold without battery or charger.
How much does the Milwaukee 3450-20 weigh?
1.3 pounds.
What battery platform does the 3450-20 use?
It runs on Milwaukee's 12V system.