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Milwaukee 2889-20 M18 FUEL 4-1/2" / 5" Variable Speed Braking Grinder

Milwaukee 2889-20 M18 FUEL 4-1/2" / 5" Variable Speed Braking Grinder

4.7· 123 ratings

Best price now

$148.99at WalmartObserved at 12:38 AM

47% under what the other stores charge

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

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Our take on the Milwaukee 2889-20 M18 FUEL 4-1/2" / 5" Variable Speed Braking Grinder

The Milwaukee 2889-20 is a cordless 4-1/2" / 5" angle grinder on the M18 platform. It runs a brushless motor with five variable speed settings from 3,500 to 8,500 RPM and an electronic brake that stops most wheels in under 2 seconds. Milwaukee rates it at power comparable to an 11-amp corded grinder when used with an M18 REDLITHIUM HIGH OUTPUT battery. It is sold as a bare tool, and the best new price is $148.99 at Walmart as of November 5, 2026, with 3 stores listing it new.

Best forTradespeople already on the M18 battery platformCutting and grinding away from an outletWork needing variable speed controlUsers who want a fast-stopping brake for safety
Pros
  • Five speed settings from 3,500 to 8,500 RPM
  • Brake stops most wheels in under 2 seconds
  • Tool-free guard adjustment and FIXTEC nut for fast wheel changes
  • Brushless motor rated near 11-amp corded power
  • Lock-on slide switch reduces fatigue on long cuts
Cons
  • Bare tool: no battery or charger in the box
  • Needs a HIGH OUTPUT M18 battery to reach full power
  • Heavier and bulkier than a small corded grinder
  • Premium price compared with basic corded grinders

Milwaukee 2889-20 M18 FUEL 4-1/2" / 5" Variable Speed Braking Grinder prices at every store

  • WalmartNew

    In stockSold by Mass Depot LLC

    $148.99Observed at 12:38 AM
    Visit store
  • Home DepotNew

    In stock

    $279.00Observed at 12:38 AM
    Visit store
  • Northern Sand and GravelNew

    In stock

    $279.99Observed at 12:38 AM
    Visit store

Also available at

  • AAA Industrial SupplyCheck price at AAA Industrial Supply
  • Fasteners Tool OutletCheck price at Fasteners Tool Outlet

Milwaukee 2889-20 M18 FUEL 4-1/2" / 5" Variable Speed Braking Grinder price history

Lowest price we've seen: $148.99 on Nov 5 at Walmart. Tracked across 5 stores since Nov 5.

What reviewers say

Rated 4.7 out of 5 from 123 ratings. Owners tend to praise the power and the brake, and many treat it as a corded-grinder replacement on the M18 platform.

Pros
  • Power close to a corded grinder
  • Fast brake improves control and safety
  • Variable speed is useful for cutting and finishing
  • Tool-free wheel changes
Cons
  • Battery and charger cost extra
  • Battery drain under heavy grinding
  • Weight with a large battery

From Walmart

  • Five variable speed settings from 3,500 RPM to 8,500 RPM for control across tasks
  • Integrated braking system stops most wheels in under 2 seconds
  • Lock-on slide switch designed to reduce fatigue during extended use
  • Tool-free guard adjustment for faster installation and changes
  • FIXTEC nut technology for tool-free accessory changes
  • Power comparable to an 11-amp corded grinder on the 18V M18 FUEL battery platform
Returns
Free holiday returns until Jan 31; extended holiday returns
Shipping
Free shipping; arrives Nov 9
In the box
Bare tool (grinder only)

Specifications

Power Source
Cordless Electric
Amperage
11A (Corded Power)
Voltage
18V DC
Maximum Speed
8,500 RPM
Variable Speed
Yes
Grinder Type
Angle Grinder
Grinder Brand
Milwaukee

Questions and answers

Is the Milwaukee 2889-20 worth it?
If you already own M18 batteries, it replaces a corded grinder for most cutting and grinding with no cord to manage. If you are starting from zero, add the cost of a HIGH OUTPUT battery and charger to the $148.99 tool price.
Does it come with a battery?
No. It is a bare tool: the box contains the grinder only. You need a Milwaukee M18 battery, and Milwaukee rates full 11-amp-class power with a REDLITHIUM HIGH OUTPUT pack.
How does it compare to the previous M18 FUEL grinder?
The 2889-20 adds a braking system that stops most wheels in under 2 seconds and five variable speed settings from 3,500 to 8,500 RPM. That makes it safer and more controllable than single-speed M18 grinders.
What size wheels does it take?
It accepts both 4-1/2-inch and 5-inch wheels with a 5/8"-11 spindle thread. The tool-free guard adjusts for either size.
When is it cheapest?
The best new price seen is $148.99 at Walmart as of November 5, 2026, with 3 stores listing it new. Bare-tool prices often drop during Milwaukee promotions and holiday sales.
Where is the Milwaukee 2889-20 M18 FUEL 4-1/2" / 5" Variable Speed Braking Grinder cheapest?
At Walmart, for $148.99, 47% under what the other stores charge, as of our latest check.
What do buyers say about the Milwaukee 2889-20 M18 FUEL 4-1/2" / 5" Variable Speed Braking Grinder?
Rated 4.7 out of 5 from 123 ratings.
Where can I buy the Milwaukee 2889-20 M18 FUEL 4-1/2" / 5" Variable Speed Braking Grinder?
5 stores we checked sell it, including Home Depot, Northern Sand and Gravel, Walmart, AAA Industrial Supply, Fasteners Tool Outlet.

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Grinder Series
M18 FUEL
Grinder Model Number
2889-20
Grinding Wheel Size
5 in
Applications
Grinding, Cutting
Maximum Rotational Speed
8,500 RPM
Power
11A corded power
Motor Type
Brushless
No Load Speed
3500 - 8500 r/min
Spindle Thread Size
5/8"-11
Battery Voltage
18V
Battery Capacity
No Battery
Battery Platform
Milwaukee M18
Battery Type
REDLITHIUM™ HIGH OUTPUT™
Battery Included
No
Height
4.37 in
Length
13.18 in
Width
2.76 in