Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › Compare

Milwaukee M12 3/8" Cordless Ratchet vs ACDelco G12 Cordless Ratchet Wrench

Buy the Milwaukee 2457-20 if you already own M12 batteries and want the faster, more refined ratchet. It spins at 250 RPM versus 170 RPM for the ACDelco, and owners rate it higher. The ACDelco ARW1209P is the better pick for a first cordless ratchet or a second kit: it ships as a complete set with a battery and charger, and it claims more torque at 45 ft-lbs. Both are brushed 12V tools with 3/8-inch square drives, so expect similar long-term wear.

  • Choose the Milwaukee 2457-20 if you are already in the M12 system and want the quicker, more compact ratchet for tight engine bays.
  • Choose the ACDelco ARW1209P if you want a ready-to-run kit with battery and charger and slightly more rated torque.

Prices

  • Milwaukee M12 3/8" Cordless Ratchet: $99.00 at Crescent Electric Supply Company (last seen Nov 8)
  • ACDelco G12 Cordless Ratchet Wrench: $46.74 at eBay (checked today)
  • Difference: the ACDelco G12 Cordless Ratchet Wrench is $52.26 cheaper than the Milwaukee M12 3/8" Cordless Ratchet at the latest prices (Nov 8 and Nov 9)
Milwaukee
Milwaukee 2457-20 M12 12V Cordless Lithium-Ion 3/8" Ratchet Bare Tool

Milwaukee M12 3/8" Cordless Ratchet

Milwaukee 2457-20 M12 12V Cordless Lithium-Ion 3/8" Ratchet Bare Tool

4.8(144 ratings)
$99.00at Crescent Electric Supply CompanyObserved at 7:28 PM
See all prices and details
Visit Crescent Electric Supply Company
Pros
  • Fast 250 RPM for a 12V ratchet
  • Compact 10-3/4 in body with a low-profile head
  • Shares M12 batteries with a wide tool range
  • High owner rating from a large sample
  • Reinforced steel housing and metal trigger
Cons
  • Bare tool: no battery or charger included
  • Lower rated torque than the ACDelco
  • Brushed motor needs eventual replacement
  • No case included
ACDelco
ACDelco ARW1209P G12

ACDelco G12 Cordless Ratchet Wrench

ACDelco ARW1209P G12

4.7(57 ratings)
$46.74at eBayObserved at 2:02 AM
See all prices and details
Visit eBay

Store links may earn us a commission.

Pros
  • Complete kit with battery and charger
  • 45 ft-lbs rated torque
  • Simple one-battery setup out of the box
  • Solid 4.7 owner rating
Cons
  • Slower at 170 RPM
  • Longer body at 11.5 in
  • G12 battery line is limited, so fewer tools to share packs with
  • Fewer ratings to judge long-term durability

What separates them

Milwaukee M12 3/8" Cordless RatchetACDelco G12 Cordless Ratchet Wrench
What's in the boxBare tool only; battery and charger sold separatelyKit with one 2.0 Ah battery and charger
Speed250 RPM170 RPM
Rated torque35 ft-lbs45 ft-lbs
Battery systemMilwaukee M12, shared with a large line of toolsACDelco G12, a much smaller lineup
Length10-3/4 in11.5 in
Head profileLow-profile head for tight spacesStandard ratchet head
Owner ratings4.8 out of 5 from 144 ratings4.7 out of 5 from 57 ratings
On-tool featuresVariable-speed metal trigger, reinforced steel housing, fuel gauge and LED lightVariable-speed trigger; fewer listed on-tool features

Price history

$99.00$46.74
Oct 31Nov 9
  • Milwaukee M12 3/8" Cordless Ratchet: lowest $80.99 on Nov 2 at Newegg.com; $85.98 on Nov 9.
  • ACDelco G12 Cordless Ratchet Wrench: lowest $46.74 on Nov 9 at eBay.

Prices at every store

Milwaukee M12 3/8" Cordless Ratchet

  • Crescent Electric Supply CompanyNew

    In stock

    $99.00Observed at 7:28 PM
    Visit Crescent Electric Supply Company

Also available at

  • HVAC & Tools DirectCheck price at HVAC & Tools Direct
  • ZenSupply.comCheck price at ZenSupply.com
  • WalmartCheck price at Walmart
Prices and history →

ACDelco G12 Cordless Ratchet Wrench

  • Durofix ToolsNew

    In stock

    $59.99+ $5.99 shippingObserved at 12:56 AM
    Visit Durofix Tools
  • WoodArtSupplyNew

    In stock

    $67.99Free shippingObserved at 12:56 AM
    Visit WoodArtSupply
  • Summit RacingNew

    In stock

    $67.99+ $13.99 shippingObserved at 12:56 AM
    Visit Summit Racing
  • eBayNew

    Availability unknownSold by torque-zone (99.8% positive, 11,100 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $46.74Free shippingObserved at 2:02 AM
    Visit eBay

Also available at

  • eBayCheck price at eBay

Store links may earn us a commission.

All 9 stores and price history →

Specs compared

SpecMilwaukee M12 3/8" Cordless RatchetACDelco G12 Cordless Ratchet Wrench
Power SourceCordlessBattery Powered
Power Voltage12 V12V
Speed Range250 RPM170 RPM (No Load Speed)
Battery Voltage12 V12V
Battery TypeLithium IonLithium Ion
Battery Capacity5.0 Ah2.0Ah
Number Of Batteries Included01
Motor Torque35 ft-lbs45 ft-lbs
Motor TypeBrushedBrushed
Chuck / Drive Size3/8"3/8 inch
Chuck / Drive TypeSquare driveSquare drive
Chuck / Drive SubtypeBall DetentSquare
Show all 40 specsShow fewer specs
SpecMilwaukee M12 3/8" Cordless RatchetACDelco G12 Cordless Ratchet Wrench
Weight0.9 kg1.96 lbs
Length10-3/4"11.5 inch
Tool TypeRatchetRatchet Wrench
Tool SubtypeCordless RatchetRatchet Wrench
Tool SeriesM12G12 Series
Battery System CompatibilityMILWAUKEE M12G12 Series
Voltage12V12 Volts
Drive Size3/8 In.3/8”
Torque35 Ft./Lb.45 Foot Pounds
Maximum Speed

What reviewers say

Milwaukee M12 3/8" Cordless Ratchet

  • 4.8 / 5144 ratings

Rated 4.8 out of 5 from 144 ratings, owners treat it as a go-to for tight fasteners and light disassembly. Complaints center on it being a bare tool and on its modest speed and power.

What people mention
  • SizePraisedOwners like the slim head for tight engine and dash spaces.
  • PowerMixed35 ft-lbs covers light work but some want more for stubborn bolts.
  • BatteryMixedM12 compatibility is a plus, but the bare tool needs batteries bought separately.
  • SpeedCriticisedSome find 250 RPM slow for longer fastening jobs.

ACDelco G12 Cordless Ratchet Wrench

  • 4.7 / 557 ratings

Owners rate it highly, mostly for how much time it saves on repetitive bolt work and how well it fits into cramped spaces. Complaints center on torque limits and the brushed motor.

What people mention
  • TorqueMixedOwners say it spins fasteners quickly but cannot crack tight bolts loose on its own.
  • SizePraisedReviewers like how compact the head is for reaching into tight engine bays.
  • WeightPraisedUsers find it light enough to hold overhead without fatigue.
  • MotorCriticisedSome owners note the brushed motor is a wear item and less efficient than brushless designs.

Questions and answers

Which is better for tight engine bay work?
The Milwaukee. It is shorter at 10-3/4 inches and has a low-profile head, so it reaches fasteners the longer ACDelco may not.
Which one is faster?
The Milwaukee, at 250 RPM against 170 RPM for the ACDelco. That means less trigger time per bolt on long jobs.
Does the ACDelco have more torque?
On paper, yes: 45 ft-lbs versus 35 ft-lbs. Treat those as rated maximums; neither is a substitute for a breaker bar on stuck fasteners.
Which lasts longer?
Both use brushed motors, so neither has a clear edge in motor life. The Milwaukee has a reinforced steel housing and a much larger owner base reporting on it.
Is the Milwaukee worth stepping up to if I own no 12V tools?
Only if you plan to buy into M12. As a bare tool it needs batteries and a charger, while the ACDelco arrives ready to use.
Can I use one battery system on both?
No. Milwaukee uses M12 packs and ACDelco uses G12 packs; they are not interchangeable.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

More comparisons

  • Milwaukee 2457-20 M12 12V Cordless Lithium-Ion 3/8" Ratchet Bare Tool vs Alloypower 3/8" 12V Extended Cordless Ratchet Wrench Kit
  • Alloypower 3/8" 12V Extended Cordless Ratchet Wrench Kit vs ACDelco ARW1209P G12

Buying guides that pick them

  • Best cordless ratchet wrench sets for auto repair
250 rpm
170 RPM
colorRedBlack
size3/8"7 oz
Torque RangeUp to 35 ft-lbs—
Fastening CapacitySuperior fastening speed—
Speed ControlVariable speed—
Motor Speed SettingsVariable-speed—
Height1-1/8 in (head height)—
Width1-1/8 in (head width)—
Case IncludedNo—
Battery Charger IncludedNo—
LED Light IncludedNo—
Overall Length10.47—
Handle TypeComfort Grip—
Automated Timed Switch OffNo—
SDS RequiredNo—
FinishRed Coated—
Peak Torque35 ft-lbs—
No Load Speed0-250 RPM—