Milwaukee 2457-21 M12 Cordless Ratchet Kit with Bag
- 35 foot pounds maximum torque
- 12 volt lithium-ion, 1.5 amp rating
- 250 RPM, variable speed
- 0.38 inch chuck and capacity
- 14.5 x 3.5 x 10.5 inches, 4.06 pounds
- 5 year limited warranty
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact cordless impact tool for tight-space fastening, with a battery listed in the box. The listing does not name a charger, so confirm what is included before ordering.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B07HSX1TTKModel: 2457-21Category: Impact Drivers & Wrenches
Overview
Compact size and variable speed define this Milwaukee tool, which runs on a lithium-ion battery from the brand's compact battery system. A battery is listed as included, and the body is metal and steel in black and red.
The reason to buy is the compact body with a battery included, useful for bolts and screws where space is tight. The limitation is a modest torque rating, and the charger is not named.
Who it's for
Mechanics, installers and hobbyists who need a small powered driver for confined spots will find the size useful. Anyone working on large axle or heavy equipment fasteners should buy a higher-torque tool.
Pros and cons
- Works with the brand's battery system
- Long limited warranty
- Charger not listed
- Modest torque range
Performance notes
Torque is delivered in short impact bursts, so the tool loosens fasteners that steady turning cannot. Variable speed lets the user start slow to avoid cross-threading. Battery charge level changes how much of the rated torque is available.
Specifications
| Brand | MILWAUKEE |
|---|---|
| Model | 2457-21 |
| Dimensions & fit | |
| Maximum Chuck Size | 0.38 inches |
| Item Dimensions L X W X H | 14.5"L x 3.5"W x 10.5"H |
| Item weight | 4.06 pounds |
| Capacity & performance | |
| Maximum Rotational Speed | 250 RPMlower than 94% of 36 impact drivers & wrenches |
| Power & efficiency | |
| Voltage | 12 voltslower than 75% of 135 impact drivers & wrenches |
| Amperage | 1.5 amps |
| Battery Type | Lithium-Ion |
| Power Source | Cordless |
| Construction & materials | |
| Material Type | Metal, Steel |
| Color | Black,red |
| Compatibility & installation | |
| Compatible Devices | Milwaukee M12 devices |
| Included components | |
| Included Components | Battery |
| Unit Count | 1.0 Count |
| Warranty & support | |
| Manufacturer Warranty Description | 5 Year Limited Warranty |
| Other details | |
| Maximum Torque | 35 foot pounds |
| Special features | Compact, Variable Speed |
| Drill Type | Basic Drill |
| Is Electric | Yes |
Closest rivals on specs
DEWALT DCF911B 20V Max 1/2 in Impact Wrench- Voltage 12 vs 20 volts (-40%)
- Maximum Rotational Speed 250 vs 2.25 RPM (+11011%)
DEWALT DCF815B 12V Max Impact Driver- Maximum Rotational Speed 250 vs 2000 RPM (-87%)
Ryobi P235AK1 One+ 18V Impact Driver Kit- Voltage 12 vs 18 volts (-33%)
- Maximum Rotational Speed 250 vs 2700 RPM (-91%)
Frequently asked questions
How do I install the battery in the Milwaukee 2457-21?
The listing gives no steps. It lists a lithium-ion battery as included and compatibility with Milwaukee M12 devices.
Does the Milwaukee 2457-21 come with a charger?
The listing names only a battery in the included components.
What size fasteners can the Milwaukee 2457-21 handle?
The listing gives 35 foot pounds of torque and a 0.38 inch capacity in wood and metal.