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Milwaukee
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

Best price now

$143.43at Mrosupreme.comChecked 1 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $143.43 at Mrosupreme.com (checked Nov 14, 2026).
  • Checked at 2 stores.

Our take on the Milwaukee 6142-30 Angle Grinder with Lock-On Paddle Switch, 11 A, 5/8-11 Spindle, 4-1/2 in Dia Wheel

The Milwaukee 6142-30 is a corded 4-1/2 in angle grinder built for industrial and heavy shop use. Its 11 A motor delivers 1,400 MWO and Milwaukee claims up to 50% more power and 3X the durability of competing grinders. A slim grip, tool-free accessory changes and an electronic clutch set it apart from basic homeowner grinders. It suits welders, fabricators and metalworkers who grind and cut all day and want a tough tool over a light one.

Best forWelders and fabricatorsMetal grinding and cuttingHeavy daily shop useBuyers who want tool-free wheel changes
Pros
  • Strong 11 A, 1,400 MWO motor
  • Electronic clutch limits bind-up damage
  • Overload protection and line lock-out
  • Soft Start for smoother startup
  • Tool-free guard and accessory changes
  • Slim grip reduces fatigue
Cons
  • Corded, so tied to an outlet
  • Heavier than small homeowner grinders
  • No variable-speed dial
  • Paddle switch model only, no slide switch

Milwaukee 6142-30 Angle Grinder with Lock-On Paddle Switch, 11 A, 5/8-11 Spindle, 4-1/2 in Dia Wheel prices at every store

  • Mrosupreme.comNew

    In stockReturn policy

    $143.43Checked 1 h ago
    Visit Mrosupreme.com
  • Home and Country USANew

    In stockReturn policy

    $165.05Checked 1 h ago
    Visit Home and Country USA

What reviewers say

Owners of Milwaukee's small angle grinders generally praise the power, the slim body and the tool-free guard and wheel changes. Complaints tend to focus on weight and the lack of a speed dial.

What people mention
  • PowerPraisedOwners say the motor cuts and grinds through steel without bogging down.
  • GripPraisedThe slim body is called comfortable and easier to control over long sessions.
  • Tool-free changesPraisedUsers like changing wheels and adjusting the guard without a wrench.
  • WeightCriticisedSome find it heavy for overhead or one-handed work.
  • Speed controlCriticisedBuyers miss a variable-speed dial for delicate work.

About the Milwaukee 6142-30 Angle Grinder with Lock-On Paddle Switch, 11 A, 5/8-11 Spindle, 4-1/2 in Dia Wheel

The Milwaukee 6142-30 is a 4-1/2 in angle grinder with an 11 A, 1,400 MWO motor. It has a lock-on paddle switch and a 5/8-11 spindle. The grip circumference is 2 in less than competing grinders, which gives more control and less fatigue during extended use.

The grinder has electronic protections. Overload protection extends 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.

The design is 100% tool-free. All accessories, including hubbed products, can be changed without a wrench. The burst-resistant, adjustable guard also installs and adjusts without tools.

Model
6142-30
Brand
Milwaukee
Current
11 A
Motor
1,400 MWO
Wheel diameter
4-1/2 in
Spindle
5/8-11
Switch
Lock-on paddle switch
Electronics
Overload protection, electronic clutch, line lock-out, Soft Start
Accessory changes
Tool-free, including hubbed products
Guard
Tool-free, burst-resistant, adjustable
UPC
045242483099

Questions and answers

Is this grinder good for welding and fabrication?
Yes. The 11 A motor and electronic clutch suit grinding welds and cutting steel. The slim grip helps during long sessions.
Does it have variable speed?
No. The 6142-30 runs at a single speed. Milwaukee's variable-speed grinders are separate models.
What wheels does it take?
It uses 4-1/2 in wheels with a 5/8-11 spindle. The tool-free design lets you change hubbed wheels without a wrench.
What does the electronic clutch do?
It slips when the wheel binds, which helps prevent kickback and protects the motor. Overload protection and line lock-out add to motor life and safety.
Is it corded or cordless?
It is corded, so it needs an outlet but gives constant power without battery swaps.
What is in the box?
The grinder, a tool-free adjustable guard and a side handle. Wheels are sold separately.
Where is the Milwaukee 6142-30 Angle Grinder with Lock-On Paddle Switch, 11 A, 5/8-11 Spindle, 4-1/2 in Dia Wheel cheapest?
At Mrosupreme.com, for $143.43, as of our latest check.
Where can I buy the Milwaukee 6142-30 Angle Grinder with Lock-On Paddle Switch, 11 A, 5/8-11 Spindle, 4-1/2 in Dia Wheel?
2 stores we checked sell it, including Mrosupreme.com, Home and Country USA.

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