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Milwaukee M18 FUEL 1/2" High Torque Impact Wrench vs DeWalt DCF900 Impact Wrench

Both are brushless 1/2-inch high-torque cordless impact wrenches aimed at the same heavy work. The Milwaukee M18 FUEL has the higher nut-busting torque figure, a four-mode drive control with a bolt removal mode, and a slightly lighter, shorter body; the DeWalt DCF900 counters with a 20V platform, a built-in LED light and a lower fastening torque rating. Owners of both report they break loose rusted lug nuts and suspension bolts without drama, so the choice comes down to which battery platform you already own and whether you want the extra modes and torque headroom.

  • Choose the Milwaukee M18 FUEL if you are already on the M18 battery platform or want the higher nut-busting torque and the four-mode control with bolt removal mode.
  • Choose the DeWalt DCF900 if you own 20V MAX batteries, want an onboard LED light, and do not need the extra torque headroom.

Prices

  • Milwaukee M18 FUEL 1/2" High Torque Impact Wrench: $38.90 at eBay (last seen Nov 9)
  • DeWalt DCF900 Impact Wrench: $71.39 at eBay (last seen Nov 9)
  • Difference: the Milwaukee M18 FUEL 1/2" High Torque Impact Wrench is $32.49 cheaper than the DeWalt DCF900 Impact Wrench at the latest prices (Nov 9)
Milwaukee
Milwaukee M18 FUEL 1/2" High Torque Impact Wrench

Milwaukee M18 FUEL 1/2" High Torque Impact Wrench

$38.90at eBayChecked Nov 9
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Pros
  • Highest fastening torque rating of the two
  • Four-mode control with a dedicated bolt removal mode
  • Lighter and shorter body for tight spaces
  • Brushless motor with REDLITHIUM battery management
Cons
  • No battery included
  • No onboard LED light listed
  • Premium tier means you pay for the extra capability
DeWalt
DeWalt DCF900 Brushless 1/2 in. High-Torque Cordless Impact Wrench

DeWalt DCF900 Impact Wrench

DeWalt DCF900 Brushless 1/2 in. High-Torque Cordless Impact Wrench

$71.39at eBayChecked Nov 9
See all prices and details
Visit eBay

Store links may earn us a commission.

Pros
  • 20V MAX platform shared with other DeWalt tools
  • Onboard LED light for dim work areas
  • 1400 ft-lbs breakaway torque handles rusted fasteners
  • Brushless motor
Cons
  • Lower fastening torque rating than the Milwaukee
  • Heavier and longer than the Milwaukee
  • No battery included
  • Fewer speed and control modes

What separates them

Milwaukee M18 FUEL 1/2" High Torque Impact WrenchDeWalt DCF900 Impact Wrench
Nut-busting / breakaway torque1400 ft-lbs nut-busting1400 ft-lbs max breakaway
Fastening torqueRated to 1400 ft-lbsRated to 1030 ft-lbs
Speed and impact control4-mode drive control with bolt removal mode, 2400 IPMSingle control, 2200 IPM
Battery platform18V Milwaukee M18 REDLITHIUM20V DeWalt MAX
Weight5.9 lb6.4 lb
Length8.39 in8.8 in
Onboard lightNot listedLED light
Battery includedTool only, no battery in the boxTool only, no battery in the box

Price history

$279.00$189.99
Nov 9Nov 10
  • Milwaukee M18 FUEL 1/2" High Torque Impact Wrench: lowest $249.00 on Nov 9 at Arbor; $249.00 on Nov 10.
  • DeWalt DCF900 Impact Wrench: lowest $189.99 on Nov 10 at Mercari.

Prices at every store

Milwaukee M18 FUEL 1/2" High Torque Impact Wrench

  • ArborNew

    In stock

    $249.00Checked 16 h ago
    Visit Arbor
  • JBTools.comNew

    In stock

    $259.99Free shippingChecked 16 h ago
    Visit JBTools.com
  • eBayNew

    Availability unknownSold by motopart5984 (99.9% positive, 1,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $38.90Free shippingChecked Nov 9
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $265.99Free shippingChecked 16 h ago
    Visit Amazon

Also available at

  • eBayCheck price at eBay

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All 20 stores and price history →

DeWalt DCF900 Impact Wrench

  • MercariNew

    In stock

    $189.99+ $11.99 shippingChecked 8 h ago
    Visit Mercari
  • The Home DepotNew

    In stock

    $269.00Free shippingChecked 8 h ago
    Visit The Home Depot
  • eBayNew

    Availability unknownSold by safn-74 (98.5% positive, 792 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $71.39Free shippingChecked Nov 9
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $235.95Free shippingChecked 8 h ago
    Visit Amazon

Store links may earn us a commission.

All 8 stores and price history →

Specs compared

SpecMilwaukee M18 FUEL 1/2" High Torque Impact WrenchDeWalt DCF900 Impact Wrench
Power SourceCordlessCordless
Motor TypeBrushlessBrushless
Battery TypeLithium Ion, REDLITHIUMLithium-Ion
Power Voltage18 V—
Torque Range1400 ft-lbs (nut-busting torque)—
Impacts Per Minute0 - 2,400 IPM—
Speed Range750 rpm (bolt removal mode)—
Driving Power186.7 ft-lb/lb (power to weight ratio)—
Fastening CapacityStubborn and rusted bolts, Stubborn and high to…—
Speed ControlYes (4-mode drive control with bolt removal mod…—
Number Of Speed Settings4—
Motor Torque1400 ft-lbs (nut-busting torque)—
Show all 33 specsShow fewer specs
SpecMilwaukee M18 FUEL 1/2" High Torque Impact WrenchDeWalt DCF900 Impact Wrench
Motor Speed Settings4—
Battery Voltage18 V—
Battery CapacityXC5.0—
Number Of Batteries Included0—
Battery Charge Time22 min—
Battery Run TimeUp to 2.5X more runtime (with M18 REDLITHIUM XC…—
Chuck/Drive Size1/2 inch—
Chuck/Drive TypeImpact wrench—
Chuck/Drive SubtypeFriction Ring—

What reviewers say

Milwaukee M18 FUEL 1/2" High Torque Impact Wrench

Owners and reviewers rate the M18 FUEL High Torque as one of the strongest cordless 1/2-inch impact wrenches, with the bolt removal mode and power drawing the most praise. Common complaints are the weight and bulk, and that the tool is often sold bare.

What people mention
  • TorquePraisedOwners say it breaks loose bolts that mid-torque wrenches cannot.
  • WeightCriticisedReviewers find the 5.9 lb body tiring when working overhead.
  • Bolt removal modePraisedUsers like the slow-speed mode for running nuts off without damage.
  • SizeMixedSome say the large head limits access in tight engine bays.

DeWalt DCF900 Impact Wrench

Owners and reviewers rate the DCF900 as one of the strongest cordless impact wrenches available, with torque that handles truck lug nuts and rusted bolts. Most complaints center on its weight and size rather than performance.

What people mention
  • TorquePraisedOwners say it breaks loose lug nuts and rusted bolts that mid-torque wrenches stall on.
  • WeightCriticisedReviewers call it heavy, especially with a large battery, which tires arms on overhead work.
  • SizeMixedThe compact body helps, but the large head still struggles in tight engine bays.
  • Battery platformPraisedBuyers like that it shares DeWalt 20V MAX batteries with their other tools.

Questions and answers

Which one is better for removing rusted lug nuts?
Both are rated at 1400 ft-lbs of breakaway or nut-busting torque, so either will handle typical rusted lug nuts. The Milwaukee adds a bolt removal mode that backs off after loosening, which saves time on a full set of wheels.
Which has more fastening torque?
The Milwaukee is rated at 1400 ft-lbs fastening torque against 1030 ft-lbs for the DeWalt. That headroom matters on large suspension and driveline bolts.
Which is easier to handle overhead?
The Milwaukee is about half a pound lighter and roughly 0.4 in shorter, so it is the easier one to hold up on ladder or under-dash work. Both are heavy tools at around 6 lb before the battery.
Do I need to stay on one battery platform?
Yes, if you already own M18 or 20V MAX batteries, buy the matching tool. Batteries are the biggest part of the running cost, and neither tool ships with one.
Is the DeWalt worth stepping up to from a compact impact?
If you regularly break loose lug nuts or suspension bolts, yes. A compact 1/2-inch impact will struggle where either of these will not.
Does either have a light?
The DeWalt DCF900 has an onboard LED light. The Milwaukee listing does not show one, so plan on a separate work light in dark spaces.

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More comparisons

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  • Makita XWT08Z 18V LXT vs DeWalt DCF900 Brushless 1/2 in. High-Torque Cordless Impact Wrench

Buying guides that pick them

  • Best high-torque cordless impact wrenches
  • Best cordless 1/2 inch drive impact wrenches
Weight
5.9 lb
—
Height10.75 in—
Length8.39 in—
Max fastening torque—1030 ft-lbs
Max breakaway torque—1400 ft-lbs
Impact rate—2200
Voltage—20 V
Product length—8.8 in
Product width—4.25 in
Product height—9.1 in
Product weight—6.4 lbs
LED light—Yes