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Milwaukee

Milwaukee 2457-21 3/8-in Cordless M12 Lithium-Ion Ratchet Kit

  • Based on 1,240 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Find it at the Bay
Arrives Friday, Jul 3
Order within 20 hours and 15 minutes
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Features

  • Powerful 12-volt motor: Delivers up to 35 ft-lbs of torque.
  • The kit includes one M12 battery, a 30-minute charger, and carrying case.
  • On-board fuel gauge: Helps you monitor the charge precisely for less downtime on the job.
  • Built-in LED light: Illuminates work surfaces in dark locations.
  • Superior fastening speed: Produces 250 RPM, with variable-speed trigger for greater control.
  • Reinforced metal housing and trigger for longer tool life
  • cluded charger and M12 REDLITHIUM battery offer high run time and long battery life for excellent value

Description

Choose the sub-compact ratchet with best-in-class power, speed and durability. The M12™ Cordless 3/8” Lithium-Ion Ratchet is the ideal tool for auto mechanics, maintenance and repair professionals looking for maximum performance and productivity in a subcompact cordless tool. It utilizes a powerful 12-volt motor to produce up to 35 ft-lbs of torque and 250 RPM, giving users the power and speed of a pneumatic ratchet without the airhose. It’s powered by the M12 REDLITHIUM™ Battery Pack (sold separately), which delivers more work per charge and more work over pack life than the competitors, as well as best-in-class performance in extreme jobsite conditions. At just 10-3/4” long and 1.9 lbs, the ratchet is tool-belt portable, and features a 3/4" low-profile head design for work in the tightest of spaces and engine bays. The variable-speed metal trigger and reinforced steel housing provide maximum control and durability with any application.

Brand: Milwaukee


Voltage: 12 Volts


Item Weight: 1.9 Pounds


Battery Cell Composition: Lithium Ion


Number of Batteries: 1 Lithium Ion batteries required. (included)


Voltage: 12 Volts


Battery Type: Lithium Ion


Number of Batteries: 1 Lithium Ion batteries required. (included)


Maximum Rotational Speed: 250 RPM


Power Source: Cordless


Item Weight: 1.9 Pounds


Unit Count: 1.0 Count


Brand Name: Milwaukee


Included Components: 30-Minute Charger, Adapter, Carrying case, M12 Red Lithium Battery, Ratchet


Model Number: 2457-21


Global Trade Identification Number: 84


Set Name: 2457-21


UPC: 045242257584 689528796611


Manufacturer Part Number: 2457-21


Manufacturer: MILWAUKEE ELECTRIC TOOL


Item Type Name: Milwaukee 2457-21 Cordless Ratchet Kit


Item Length: 10.1 Inches


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Works Great. Huge time saver.
Size: 3/8"
Short review: Works great. Huge time saver. Long review: Great tool as are most Milwaukee power tools I have owned. This tool isn't going to do anything you can't already do with a normal ratchet or even a power drill with a 3/8 inch socket adapter, but man it is such a time saver. It is just handy to have this dedicated socket power tool. I thought I would just use this for working on cars, tractors, or other machinery. However, it is so handy, I have it in my general handyman tool tote with a small socket set. It saves so much time on all kinds of little projects. I just used it the other day to disassemble a bed frame that uses about 6 inch lag screws. It turned a 10-15 minute job into a 5 minute job. Zips those screws or nuts right out or off. Battery life seems good. It has a light on it that I do find handy sometimes. It is like a two stage trigger. Pull it a little and the light turns on without the tool running. Pull the trigger further and the tool runs. The tool seems to have good torque. It isn't going to break rusty or really tight bolts. It isn't an impact wrench. However, the tool is built to allow the user to use it like a ratchet to break loose the nut or tighten it at the end. I have found that it works fine for most nut/bolts I encounter, but obviously you have to get a regular ratchet to break the nuts loose sometimes. It seems plenty durable for the DIYer or farmer or similar use. I can't attest to how it would hold up in a professional setting. I also, can't say how it compares to an air ratchet as I have never owned one. I use this tool for DIY home use/handyman use/farm work/DIY mechanic work. It has held up well so far. The one negative is the price of Milwaukee power tools. They are good tools, but I think you probably pay extra for the brand name. Other cheaper brands usually work just fine. However, I try to stick to one or two brands so I don't have a bunch of different batteries and chargers. Bottom line is I find it handy and a durable tool for a DIY type of person. Not sure how it would hold up to every day professional use. ... show more
Reviewed in the United States on May 3, 2019 by Joel Kemp
    • Great start for electric shop tools
Size: 3/8"
Works excellent. Great start for electric ratchets.
Reviewed in the United States on May 15, 2026 by Sean Day
    • Used by professional technicians everywhere
Size: 3/8"
This is a great tool for the professional technician. Best there is for getting in those tight spots.
Reviewed in the United States on March 28, 2026 by Amazon Customer
    • Quality
Size: 3/8"
Great tool for car work
Reviewed in the United States on March 22, 2026 by Scott sills
    • I should have gotten one years ago.
Size: 3/8"
After almost 50 years of turning a ratchet, I finally stepped up. Charges quickly, not too heavy, and reasonable torque. Perfect for the under chassis covers on a Mercedes that have 6 screws each.
Reviewed in the United States on April 14, 2026 by Doug
    • Love this thing
Size: 3/8"
Been owning and using this for at least 4 years. I love this thing . The quality is amazing. Very easy to use and makes the job easier, not heavy, works for home, DIY, and any shop . The only thing that made me give it 4stars is the battery that came with it, very weak and gave up after 8 months of use. But once you upgrade to better and higher AHM. Works perfectly. ... show more
Reviewed in the United States on July 11, 2025 by Husain
    • Great buy on impact
Size: 3/8"
Use this daily. Worth the money. Very durable and easy to use. Nice red color. Has plenty of power for jobs.
Reviewed in the United States on May 22, 2026 by stephen m.
    • Great M12 Ratchet – Works Well and Good Value for the Price
Size: 3/8"
I bought this Milwaukee M12 3/8” ratchet mainly for working in tighter spaces, and overall I’m really happy with it. The tool works exactly as expected and has plenty of power for its size. It makes jobs much faster compared to using a regular ratchet, especially when you’re working on vehicles or in spots where a bigger tool won’t fit. The ratchet, battery, and instruction manual all arrived and everything worked perfectly right out of the bag. The tool feels solid like you would expect from Milwaukee, and for the price I think it’s a really good value if you’re looking for a compact cordless ratchet. One small thing I noticed is that the ratchet didn’t come in the retail box and was inside the bag when it arrived. Also, the bag itself is a bit lighter than I expected and not exactly like the one shown in the photos. It seems more like a simple dust bag to keep the tool clean rather than a heavy-duty bag for carrying a lot of tools. For me that’s not a big deal since I mainly wanted the ratchet itself. Overall, the tool performs great and does its job well. If you’re mainly buying it for the ratchet and battery, it’s an excellent tool for the money. If the bag is something that matters a lot to you, just keep that in mind, but the tool itself is definitely worth it. ... show more
Reviewed in the United States on March 15, 2026 by Glorimar

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