Milwaukee 2456-20 M12 Ratchet 1/4 Inch
- Item Torque: 30 ft-lb
- Head Style: Ratchet
- Operation Mode: Battery
- Measurement Standard: SAE (Inch)
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact 12 volt impact wrench for the M12 platform, worth buying only if you already own M12 batteries since this ships as a bare tool.
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ASIN: B00659G0CCModel: 2456-20Category: Impact Drivers & Wrenches
Overview
The Milwaukee 2456-20 is a 12 volt cordless impact wrench weighing 1.55 pounds, sold as a bare tool without battery or charger. It runs on Milwaukee's M12 cordless system for compact fastening work.
The -20 suffix in Milwaukee's naming marks this as a bare tool, so a compatible M12 battery and charger are needed separately, which most buyers already own if they are invested in the M12 platform. At 1.55 pounds it is built for one-handed use in tight spots rather than heavy fastening.
- 12 volt M12 platform
- 1.55 pound tool weight
- Bare tool, battery sold separately
- Compact body for tight-space fastening
Who it's for
Fits Milwaukee M12 owners who need a compact impact wrench for automotive or light fastening tasks. Not a fit for first-time buyers without existing M12 batteries.
Pros and cons
- Compact 1.55 pound body for tight spots
- Runs on the wide Milwaukee M12 battery line
- 12 volt platform keeps weight low
- Sold bare, no battery or charger included
- 12 volt output limits it to lighter fastening work
Performance notes
At 1.55 pounds and 12 volts, this impact wrench trades raw torque for maneuverability, suited to fasteners in tight engine bays or under dashboards rather than lug nuts on a truck. Because it ships bare, actual runtime depends entirely on the battery paired with it.
Specifications
| Brand | MILWAUKEE |
|---|---|
| Model | 2456-20 |
| Dimensions & fit | |
| Item Weight | 1.55 poundslower than 84% of 184 impact drivers & wrenches |
| Item Length | 10 incheshigher than 57% of 128 impact drivers & wrenches |
| Capacity & performance | |
| Jaw Capacity | 0.2 incheslower than 96% of 71 impact drivers & wrenches |
| Power & efficiency | |
| Voltage | 12 voltslower than 76% of 171 impact drivers & wrenches |
| Construction & materials | |
| Material Type | Alloy Steel, Plastic |
| Color | Red |
| Finish Types | Painted |
| Included components | |
| Unit Count | 1 |
| Included Components | Combination Wrench |
| Package Quantity | 1 |
| Other details | |
| Item Torque | 30 ft-lblower than 96% of 116 impact drivers & wrenches |
| Head Style | Ratchet |
| Operation Mode | Battery |
| Measurement Standard | SAE (Inch) |
| End Style | Socket End |
| Is Racheting | Yes |
| Is Non Sparking | No |
Closest rivals on specs
DEWALT Xtreme DCF801B 12V Max Impact Driver- Item Weight 1.55 vs 1.75 pounds (-11%)
DEWALT DCF815B 12V Max Impact Driver- Item Weight 1.55 vs 1.8 pounds (-14%)
Milwaukee 2462-20 M12 1/4 in Hex Impact Driver- Item Weight 1.55 vs 1.9 pounds (-18%)
Frequently asked questions
Does the Milwaukee 2456-20 include a battery?
No, the -20 designation means it ships as a bare tool without a battery or charger.
What battery platform does it use?
Milwaukee's 12 volt M12 system.
How much does the tool weigh?
1.55 pounds.