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Deal.ai › Milwaukee
Milwaukee
Milwaukee 6142-30 4-1/2" 11A Small Angle Grinder, Lock on, Overload Protection

Milwaukee 6142-30 4-1/2" 11A Small Angle Grinder, Lock on, Overload Protection

5(7 ratings)

Best price now

$134.99at WalmartChecked 11 h ago

Compared across 13 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $134.99 at Walmart (checked Nov 13, 2026).
  • Checked at 13 stores.

Our take on the Milwaukee 6142-30 4-1/2" 11A Small Angle Grinder, Lock on, Overload Protection

The Milwaukee 6142-30 is a corded 4-1/2-inch angle grinder with an 11-amp motor rated at 1,400 max watts out. It is built for industrial and heavy shop use, with a slim 2-inch-smaller grip than the competition, a tool-free guard and accessory changes, and Milwaukee's electronic package: overload protection, electronic clutch, line lock-out and soft start. It trades the compactness and lower weight of battery grinders for corded power and durability. Owners of corded grinders in this class rate it for power and control, while some note its weight and cord dependence for overhead or ladder work.

Best forMetal fabrication and weld cleanupHeavy shop and industrial useLong grinding sessions where control mattersUsers who want tool-free guard and wheel changes
Pros
  • 11-amp, 1,400 MWO motor for tough cuts and grinding
  • Slim grip reduces fatigue and improves control
  • Tool-free guard and accessory changes, including hubbed wheels
  • Overload protection and electronic clutch extend motor and tool life
  • Line lock-out prevents restart after a power loss
  • Soft start limits kick on startup
Cons
  • Corded, so it needs an outlet or generator
  • Heavier and bulkier than compact cordless grinders
  • Lock-on paddle switch is not ideal for every user
  • No variable speed on this model

Milwaukee 6142-30 4-1/2" 11A Small Angle Grinder, Lock on, Overload Protection prices at every store

  • WalmartNew

    In stockSold by REAL DEALZ LLC

    $134.99Free shippingChecked 11 h ago
    Visit Walmart
  • Home DepotNew

    In stock

    $139.00Free shippingChecked 11 h ago
    Visit Home Depot
  • Northern ToolNew

    In stock

    $139.00Free shippingChecked 11 h ago
    Visit Northern Tool
  • Blain's Farm & FleetNew

    In stock

    $139.00+ $1.99 shippingChecked 11 h ago
    Visit Blain's Farm & Fleet
  • Acme ToolsNew

    In stock

    $139.00+ $6.49 shippingChecked 11 h ago
    Visit Acme Tools
  • Ace HardwareNew

    In stock

    $139.00+ $15.00 shippingChecked 11 h ago
    Visit Ace Hardware
  • The Milwaukee StoreNew

    In stock

    $139.00+ $24.20 shippingChecked 11 h ago
    Visit The Milwaukee Store
  • SupplyHouse.comNew

    In stock

    $167.47Free shippingChecked 11 h ago
    Visit SupplyHouse.com
  • MSC Industrial SupplyNew

    In stock

    $156.50+ $16.99 shippingChecked 11 h ago
    Visit MSC Industrial Supply
  • Grainger Industrial SupplyNew

    In stock

    $159.97+ $15.69 shippingChecked 11 h ago
    Visit Grainger Industrial Supply
  • bomgaars.comNew

    In stock

    $139.99+ $51.00 shippingChecked 11 h ago
    Visit bomgaars.com
  • Rural KingNew

    Availability unknown

    $139.00+ $36.30 shippingChecked 11 h ago
    Visit Rural King
  • AmazonNew

    Availability unknown

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

    $205.00Free shippingChecked 11 h ago
    Visit Amazon

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Milwaukee 6142-30 4-1/2" 11A Small Angle Grinder, Lock on, Overload Protection price history

Lowest price we've seen: $134.99 on Nov 13 at Walmart. Tracked across 13 stores since Nov 13.

What reviewers say

Owners of corded 4-1/2-inch grinders generally praise the 6142-30 for its power, slim grip and tool-free guard, and treat the electronic protection as a durability plus. Criticism centers on weight and the cord for overhead or remote work, and some prefer a trigger-only switch.

What people mention
  • PowerPraisedOwners say the 11-amp motor keeps speed up through heavy grinding and cutting.
  • GripPraisedThe slim body is called comfortable and easier to control over long sessions.
  • Tool-free changesPraisedGuard and accessory changes without a wrench are widely liked.
  • WeightCriticisedSome find it heavy and tiring for overhead or one-handed use.
  • CordMixedCorded power is strong, but users note it ties them to an outlet.
  • SwitchMixedThe lock-on paddle suits some users; others prefer a trigger-only design.

About the Milwaukee 6142-30 4-1/2" 11A Small Angle Grinder, Lock on, Overload Protection

The Milwaukee 6142-30 is a corded 4-1/2" small angle grinder with an 11 amp, 12,000 RPM motor. It has a slim paddle switch with a lock-on. The grip circumference is 2 inches less than the competition's, which gives more control and less fatigue.

Overload Protection helps extend motor life. An Electronic Clutch extends tool life and helps prevent bind-up. Line Lock-Out prevents automatic start-up after power loss, and Soft Start is included. An Advanced Airflow System maximizes airflow and reduces debris ingress.

The design is fully tool-free. All accessories, including hubbed product, can be changed without a wrench. The burst-resistant guard is also tool-free and adjustable for quick installation and adjustment.

Type
Corded small angle grinder, paddle switch with lock-on
Power
11 amp, 1,400 MWO motor
Speed
12,000 RPM
Capacity
4.5"
Spindle size
5/8 in
Color
Black
Weight
5.5 lbs
Length
13.8"
Protection
Overload Protection, Electronic Clutch, Line Lock-Out, Soft Start
Guard
Type 27, tool-free, adjustable, burst resistant
In the box
Grinder, contractor bag, flanges, side handle, spanner wrench, Type 27 guard
Replaces
6146-30
Warranty

Specifications

color
Black
size
5/8 in

Questions and answers

Is the 6142-30 good for home use?
It is more tool than most home jobs need. It suits fabrication, weld cleanup and heavy shop work; occasional DIY users may prefer a smaller or cordless grinder.
Does it have variable speed?
No. The 6142-30 is a single-speed grinder. Milwaukee's variable-speed models are separate tools.
What wheels does it take?
It uses 4-1/2-inch wheels with a 5/8-inch arbor, and the tool-free design lets you change hubbed and non-hubbed accessories without a wrench.
What is included in the box?
The grinder, a contractor bag and flanges. Wheels and a side handle are not listed as included.
How does it compare with a cordless grinder?
It has more sustained power and no battery to recharge, but it is heavier and needs an outlet. Cordless grinders win for portability and overhead work.
What do the electronic features do?
Overload protection and an electronic clutch protect the motor and help prevent bind-up, line lock-out stops restart after a power loss, and soft start reduces startup kick.
Where is the Milwaukee 6142-30 4-1/2" 11A Small Angle Grinder, Lock on, Overload Protection cheapest?
At Walmart, for $134.99, as of our latest check.
What do buyers say about the Milwaukee 6142-30 4-1/2" 11A Small Angle Grinder, Lock on, Overload Protection?
Rated 5 out of 5 from 7 ratings.
Where can I buy the Milwaukee 6142-30 4-1/2" 11A Small Angle Grinder, Lock on, Overload Protection?
13 stores we checked sell it, including Walmart, Amazon, Home Depot, Ace Hardware, Acme Tools.

Stores we've priced the Milwaukee 6142-30 4-1/2" 11A Small Angle Grinder, Lock on, Overload Protection at

  • Ace Hardware deals and prices
  • Acme Tools deals and prices
  • Blain's Farm & Fleet deals and prices
  • Grainger Industrial Supply deals and prices
  • MSC Industrial Supply deals and prices
5 years against manufacturer defect
  • Northern Tool deals and prices
  • Rural King deals and prices
  • The Home Depot deals and prices
  • The Milwaukee Store deals and prices
  • Walmart deals and prices
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