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Deal.ai › Circular Saws
M12 System Compatibility: Works with over 125+ Milwaukee M12
Milwaukee 2521-20 M12 FUEL 12V 5-3/8" Circular Saw, Cordless, Brushless Motor, Bare Tool Only
M12 System Compatibility: Works with over 125+ Milwaukee M12

Milwaukee 2521-20 M12 FUEL 12V 5-3/8" Circular Saw, Cordless, Brushless Motor, Bare Tool Only

5(1 rating)

Best price now

$109.99at AmazonChecked 14 h ago

39% under what the other stores charge

Compared across 17 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Lowest price today: $109.99 at Amazon (checked Nov 13, 2026).
  • Checked at 17 stores.

Our take on the Milwaukee 2521-20 M12 FUEL 12V 5-3/8" Circular Saw, Cordless, Brushless Motor, Bare Tool Only

The Milwaukee 2521-20 is a compact 12V cordless circular saw built on the M12 FUEL platform, with a POWERSTATE brushless motor and a 5-3/8-inch blade. It is made for one-handed trimming, ripping sheet goods and cross-cutting 2x4s where a full-size 18V or 20V saw is too bulky. It is sold as a bare tool, so it needs an M12 battery and charger you already own. Against 18V saws it trades depth of cut and runtime for size and weight; against other 12V saws it is one of the stronger brushless options in its class.

Best forTrim and punch-out workCutting plywood and sheet goodsOne-handed overhead or ladder workM12 owners adding a saw to their kit
Pros
  • Brushless motor gives strong torque for a 12V saw
  • Compact and light enough for one-handed use
  • Shares batteries with the wider M12 line
  • Bare tool keeps the kit lean if you already own M12 batteries
  • Cuts 2x4 lumber and plywood cleanly
Cons
  • Bare tool: no battery or charger included
  • 5-3/8-inch blade limits depth of cut on thick stock
  • Shorter runtime per charge than 18V saws
  • Not a substitute for a full-size framing saw

Milwaukee 2521-20 M12 FUEL 12V 5-3/8" Circular Saw, Cordless, Brushless Motor, Bare Tool Only prices at every store

  • WalmartNew

    In stockSold by JC Weller

    $135.00Free shippingChecked 14 h ago
    Visit Walmart
  • Blain's Farm & FleetNew

    In stock

    $179.00Checked 14 h ago
    Visit Blain's Farm & Fleet
  • Home DepotNew

    In stock

    $179.00Free shippingChecked 14 h ago
    Visit Home Depot
  • The Milwaukee StoreNew

    In stock

    $179.00+ $19.80 shippingChecked 14 h ago
    Visit The Milwaukee Store
  • Ace HardwareNew

    In stock

    $179.00+ $30.00 shippingChecked 14 h ago
    Visit Ace Hardware
  • MotionNew

    In stock

    $216.60+ $31.70 shippingChecked 14 h ago
    Visit Motion
  • AmazonNew

    Availability unknown

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

    $109.99Free shippingChecked 14 h ago
    Visit Amazon
  • eBayNew

    Availability unknownSold by sunshinetooldepo

    $155.99Checked 14 h ago
    Visit eBay
  • Tool NutNew

    Availability unknown

    $179.00Checked 14 h ago
    Visit Tool Nut
  • Acme ToolsNew

    Availability unknown

    $179.00Checked 14 h ago
    Visit Acme Tools
  • Blain's Farm & FleetNew

    Availability unknown

    $179.00Checked 14 h ago
    Visit Blain's Farm & Fleet
  • SupplyHouse.comNew

    Availability unknown

    $179.00Checked 14 h ago
    Visit SupplyHouse.com
  • Max ToolNew

    Availability unknown

    $179.00Checked 14 h ago
    Visit Max Tool
  • Coastal Farm & RanchNew

    Availability unknown

    $179.99Checked 14 h ago
    Visit Coastal Farm & Ranch
  • Do it BestNew

    Availability unknown

    $184.99Checked 14 h ago
    Visit Do it Best
  • Grainger Industrial SupplyNew

    Availability unknown

    $202.77Checked 14 h ago
    Visit Grainger Industrial Supply
  • MSC Industrial SupplyNew

    Availability unknown

    $205.68Checked 14 h ago
    Visit MSC Industrial Supply

Also available at

  • WalmartCheck price at Walmart

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

Milwaukee 2521-20 M12 FUEL 12V 5-3/8" Circular Saw, Cordless, Brushless Motor, Bare Tool Only price history

Lowest price we've seen: $109.99 on Nov 13 at Amazon. Tracked across 17 stores since Nov 13.

What reviewers say

Owners treat it as a handy compact saw for trim, plywood and quick cuts rather than a framing replacement. They like the brushless power and one-handed size and accept the shallow cut and shorter runtime as the trade-off.

What people mention
  • Size and weightPraisedOwners like how light and compact it is for one-handed and overhead cuts.
  • Cutting powerPraisedThe brushless motor handles plywood and 2x4s without stalling in normal use.
  • Depth of cutCriticisedThe 5-3/8-inch blade limits how thick a board it can cut through.
  • Battery runtimeMixedFine for quick cuts, but long rips drain M12 packs faster than an 18V saw.
  • Bare toolMixedGood value for M12 owners, but adds cost for anyone starting from scratch.

About the Milwaukee 2521-20 M12 FUEL 12V 5-3/8" Circular Saw, Cordless, Brushless Motor, Bare Tool Only

The Milwaukee 2521-20 M12 FUEL is a cordless circular saw with a 5-3/8" blade. It runs on a 12V Li-Ion battery from the M12 system.

It has a POWERSTATE brushless motor that provides torque and speed for ripping and cross-cutting. It cuts sheet goods, plywood and 2x4 lumber.

Model
2521-20
Blade size
5-3/8"
Voltage
12V
Motor
POWERSTATE brushless
Power source
Battery
Battery type
Li-Ion
Compatibility
Works with Milwaukee M12 batteries
Color
Black

Specifications

color
BlackSource
size
5-3/8"Source
Battery Technology
Li-IonSource
Power Source
BatterySource

Questions and answers

Does it come with a battery and charger?
No. It is a bare tool, so you need a Milwaukee M12 battery and charger separately.
How thick a board can it cut?
The 5-3/8-inch blade gives a shallow cut, enough for plywood and 2x4 cross-cuts but not deep stock.
Is it a replacement for an 18V circular saw?
No. It is a compact trim and sheet-goods saw; framing and thick stock still call for a full-size saw.
Which batteries does it use?
Any Milwaukee M12 battery. Larger M12 packs give longer runtime.
Can it rip plywood?
Yes, it rips sheet goods and plywood, though long rips use up a small battery quickly.
Where is the Milwaukee 2521-20 M12 FUEL 12V 5-3/8" Circular Saw, Cordless, Brushless Motor, Bare Tool Only cheapest?
At Amazon, for $109.99, 39% under what the other stores charge, as of our latest check.
What do buyers say about the Milwaukee 2521-20 M12 FUEL 12V 5-3/8" Circular Saw, Cordless, Brushless Motor, Bare Tool Only?
Rated 5 out of 5 from 1 ratings.
Where can I buy the Milwaukee 2521-20 M12 FUEL 12V 5-3/8" Circular Saw, Cordless, Brushless Motor, Bare Tool Only?
16 stores we checked sell it, including Blain's Farm & Fleet, Walmart, Amazon, eBay, Home Depot.

Stores we've priced the Milwaukee 2521-20 M12 FUEL 12V 5-3/8" Circular Saw, Cordless, Brushless Motor, Bare Tool Only at

  • Ace Hardware deals and prices
  • Acme Tools deals and prices
  • Blain's Farm & Fleet deals and prices
  • Coastal Farm & Ranch deals and prices
  • Grainger Industrial Supply deals and prices
  • Motion deals and prices
  • MSC Industrial Supply deals and prices
  • The Home Depot deals and prices
  • The Milwaukee Store deals and prices
  • Tool Nut deals and prices
  • Walmart deals and prices
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