StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • 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.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › Milwaukee › Milwaukee Grinders
Milwaukee
Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Paddle Switch, No Lock

Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Paddle Switch, No Lock

5(2 ratings)

Best price now

$469.99at WalmartChecked 1 h ago

Compared across 3 stores. Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

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

Price facts

  • Lowest price today: $469.99 at Walmart (checked Nov 14, 2026).
  • Checked at 3 stores.

Our take on the Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Paddle Switch, No Lock

The Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder is a cordless angle grinder built on Milwaukee's brushless FUEL motor and 18V M18 battery platform. Its headline feature is a braking system that stops the wheel fast after the trigger is released, plus ONE-KEY tool tracking and a paddle switch with no lock-on. It suits tradespeople who cut and grind metal, pipe and concrete and want corded-class power without a cord. Against corded grinders it trades unlimited runtime for portability; against other cordless grinders, the brake and ONE-KEY are the differentiators.

Best forMetalworkers cutting and grinding steelPipe fitters and welders working off ladders or scaffoldsContractors already on the M18 battery platformCrews that want tool tracking and lockout on shared jobsites
Pros
  • Brake stops the wheel quickly for safer handling
  • Brushless FUEL motor delivers strong torque for its class
  • ONE-KEY tracking and tool control for jobsite management
  • Paddle switch with no lock-on suits cutting and quick control
  • Accepts both 4-1/2" and 5" wheels
  • Runs on the widely used M18 18V battery line
Cons
  • Runtime depends on battery size; heavy cutting drains packs fast
  • Bare tool only, so batteries and charger are extra
  • Brake and electronics add weight and complexity
  • Not a substitute for a corded grinder in all-day production work

Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Paddle Switch, No Lock prices at every store

  • WalmartNew

    In stockSold by Amazing Deals PlusReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $469.99Free shippingChecked 1 h ago
    Visit Walmart
  • The Home DepotNew

    In stock

    $499.00Free shippingChecked 1 h ago
    Visit The Home Depot
  • Msc Industrial SupplyNew

    In stock

    $610.21+ $45.99 shippingChecked 1 h ago
    Visit Msc Industrial Supply

Store links may earn us a commission. Some prices via Klarna.

Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Paddle Switch, No Lock price history

Lowest price we've seen: $499.00 on Nov 14 at The Home Depot. Tracked across 2 stores since Nov 14.

What reviewers say

Owners and reviewers generally rate the M18 FUEL braking grinder highly for its power, fast brake and smooth handling, and tradespeople like the ONE-KEY tracking. The main complaints are battery drain under heavy load and the cost of buying into the platform.

What people mention
  • BrakePraisedOwners say the brake stops the wheel quickly after release, which they value for safety and control.
  • PowerPraisedReviewers report strong cutting and grinding performance for a cordless tool, close to corded models.
  • Battery lifeCriticisedHeavy cutting drains packs fast, so users say high-capacity M18 batteries are needed.
  • WeightMixedSome owners find it heavier than expected, though others accept the weight for the power.
  • ONE-KEYPraisedUsers like the tool tracking and management features on shared jobsites.
  • VibrationPraisedReviewers describe smooth, low-vibration operation during extended grinding.

About the Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Paddle Switch, No Lock

This is the Milwaukee M18 FUEL 4-1/2" / 5" braking grinder. It has a paddle switch with no lock and works with ONE-KEY.

It runs on an 18 V battery.

Brand
Milwaukee
Series
M18 FUEL
Wheel size
4-1/2" / 5"
Switch
Paddle switch, no lock
Connectivity
ONE-KEY
Power source
Battery
Voltage
18 V
Size
5/8 in
Color
Black

Specifications

color
BlackSource
size
5/8 inSource
Power Source
BatterySource
Voltage (V)
18.0Source

Questions and answers

What does the braking feature do?
It stops the wheel quickly once the trigger is released, reducing the time the wheel keeps spinning. That makes setting the tool down and moving between cuts safer.
Does it come with batteries and a charger?
It is sold as a bare tool, so M18 batteries and a charger are separate. You need at least one 18V M18 pack to run it.
What is ONE-KEY on this grinder?
ONE-KEY is Milwaukee's tool tracking and management system. It lets you identify and manage the tool through the ONE-KEY app and network.
Can it use both 4-1/2-inch and 5-inch wheels?
Yes. The grinder accepts both 4-1/2-inch and 5-inch wheels with a 5/8-inch arbor, so you can match the wheel to the job.
How does it compare with a corded grinder?
It offers cordless freedom and power close to corded models, but runtime is limited by battery capacity. For all-day continuous cutting, a corded grinder still has the edge.
Why is there no lock-on switch?
The paddle switch is designed without a lock-on so the tool stops when you release it. That suits cutting and quick control rather than long continuous grinding.
Where is the Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Paddle Switch, No Lock cheapest?
At Walmart, for $469.99, as of our latest check.
What do buyers say about the Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Paddle Switch, No Lock?
Rated 5 out of 5 from 2 ratings.
Where can I buy the Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Paddle Switch, No Lock?
3 stores we checked sell it, including Walmart, The Home Depot, Msc Industrial Supply.

Stores we've priced the Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Paddle Switch, No Lock at

  • MSC Industrial Supply deals and prices
  • The Home Depot deals and prices

More from Milwaukee

  • M
    Milwaukee 2881-20 M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 4-1/2 in./5 in. Grinder with Slide Switch (Tool-Only)
    Milwaukee 2881-20 M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 4-1/2 in./5 in. Grinder with Slide Switch (Tool-Only)
  • M
    Milwaukee M18 FUEL 2785-20
    Milwaukee M18 FUEL 2785-20
  • M
    Milwaukee M18 Fuel 4-1/2 Inch Braking Grinder
    Milwaukee M18 Fuel 4-1/2 Inch Braking Grinder
  • M
    Milwaukee Electric Tools 2680-20 M18 CUT-OFF/ GRINDER
    Milwaukee Electric Tools 2680-20 M18 CUT-OFF/ GRINDER
  • M
    Milwaukee M18 Fuel 2883-20 Solo
    Milwaukee M18 Fuel 2883-20 Solo
  • M
    Milwaukee 6142-30 Angle Grinder with Lock-On Paddle Switch, 11 A, 5/8-11 Spindle, 4-1/2 in Dia Wheel
    Milwaukee 6142-30 Angle Grinder with Lock-On Paddle Switch, 11 A, 5/8-11 Spindle, 4-1/2 in Dia Wheel
  • M
    Milwaukee 6142-30 4-1/2" SAG PADDLE, LOCK-ON
    Milwaukee 6142-30 4-1/2" SAG PADDLE, LOCK-ON
  • M
    MILWAUKEE 6142-30 Angle Grinder 4.5 inches
    MILWAUKEE 6142-30 Angle Grinder 4.5 inches
All Milwaukee deals and products →

More angle grinders

  • M
    Milwaukee 6146-30 Grinder
    Milwaukee 6146-30 Grinder
  • 1
    11 Amp Corded 4-1/2 in. Angle Grinder
    11 Amp Corded 4-1/2 in. Angle Grinder
  • D
    DeWalt DCG410B 4-1/2 in. Angle Grinder
    DeWalt DCG410B 4-1/2 in. Angle Grinder
  • D
    DEWALT Cordless Angle Grinder DCG410WW1 4 1/2 to 5 Inch Small Power Tool Kit
    DEWALT Cordless Angle Grinder DCG410WW1 4 1/2 to 5 Inch Small Power Tool Kit
  • M
    Milwaukee 2686-20 M18 Brushless 4-1/2" / 5" Cut-Off Grinder, Paddle Switch
    Milwaukee 2686-20 M18 Brushless 4-1/2" / 5" Cut-Off Grinder, Paddle Switch
M
Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder, Paddle Switch No-Lock
Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder, Paddle Switch No-Lock
  • M
    Makita GA4530KD Angle Grinder 115mm with Diamond Disc and Case
    Makita GA4530KD Angle Grinder 115mm with Diamond Disc and Case
  • M
    Makita 9565CV 5" Angle Grinder Variable Speed
    Makita 9565CV 5" Angle Grinder Variable Speed