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Deal.ai › Milwaukee
Milwaukee
MILWAUKEE 6142-30 Angle Grinder 4.5 inches

MILWAUKEE 6142-30 Angle Grinder 4.5 inches

Best price now

$139.00at 2M EquipmentChecked 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: $139.00 at 2M Equipment (checked Nov 14, 2026).
  • Checked at 2 stores.

Our take on the MILWAUKEE 6142-30 Angle Grinder 4.5 inches

The Milwaukee 6142-30 is a corded 4.5-inch small angle grinder built around a 10 Amp, 1250 MWO motor that spins at 10,000 rpm. It targets heavy shop and jobsite use, with epoxy motor protection, an advanced airflow system and a tool-free burst-resistant guard. The 3-position soft grip side handle and extra-large paddle switch with lock-on set it apart from basic grinders that offer a fixed handle and a small slide switch. Owners of Milwaukee's corded grinders generally rate the power and durability highly, while the corded, 120V-only design and the tool's weight are the usual trade-offs against cordless or lighter models.

Best forMetal fabrication and weld grindingCutting rebar, pipe and sheet metalContractors who want a corded grinder that lastsUsers who prefer a paddle switch with lock-on
Pros
  • Strong 10 Amp, 1250 MWO motor at 10,000 rpm
  • Epoxy-sealed motor and airflow system for longer life
  • Tool-free burst-resistant guard adjusts quickly
  • 3-position side handle for flexible grip
  • Large paddle switch with lock-on reduces hand fatigue
  • 8 ft cord and double insulation
Cons
  • Corded 120V AC only, so no battery freedom
  • Heavier and bulkier than compact cordless grinders
  • Paddle switch can be awkward in tight spaces
  • No variable speed or tool-free wheel change

MILWAUKEE 6142-30 Angle Grinder 4.5 inches prices at every store

  • 2M EquipmentNew

    In stockReturn policy

    $139.00Checked 1 h ago
    Visit 2M Equipment
  • Voomi SupplyNew

    In stockReturn policy

    $172.73Checked 1 h ago
    Visit Voomi Supply

What reviewers say

Owners of Milwaukee's corded 4.5-inch grinders tend to praise the motor's power and the tool's durability under hard use. Complaints center on weight and the cord limiting mobility.

What people mention
  • PowerPraisedOwners say the 10 Amp motor cuts and grinds steel without bogging down.
  • DurabilityPraisedReviewers report the tool survives years of jobsite use, helped by the sealed motor and airflow.
  • WeightCriticisedSome find it heavy for overhead work or extended one-handed use.
  • CordCriticisedThe corded design limits movement compared with battery grinders.
  • SwitchMixedThe large paddle switch is comfortable for some and awkward in tight spots for others.

About the MILWAUKEE 6142-30 Angle Grinder 4.5 inches

The Milwaukee 6142-30 is a corded 4.5-inch compact angle grinder. Its 10 amp, 1250 MWO motor gives high overload protection and power. An advanced airflow system extends tool life.

An extra-large paddle switch with lock-on adds comfort and ease of use. The 3-position soft grip handle lets the user choose where to place it. The tool-free, burst-resistant guard can be adjusted quickly without tools.

Type
Compact angle grinder, corded electric
Wheel diameter
4.5 in
Motor
10 amps, 1250 MWO, epoxy motor protection
Voltage
120 V AC only
Speed
10,000 rpm, single speed (not variable)
Gears
Spiral bevel
Spindle thread
5/8-11
Switch
Paddle switch with lock-on
Handle
3-position side handle, soft grip
Guard
Tool-free, burst resistant
Cord length
8 ft
Insulation
Double insulated
Dimensions
13.8 x 4.2 x 2.7 in (L x W x H)
Certifications
UL Listed, CSA Listed, ETL Listed
Warranty
5-year limited

Questions and answers

Is the Milwaukee 6142-30 good for cutting steel?
Yes. The 10 Amp motor and 10,000 rpm speed handle cutting and grinding steel, rebar and pipe with a 4.5-inch wheel. It is a corded tool, so it stays strong under load.
Does it have a lock-on switch?
Yes. It uses a paddle switch with lock-on, so you can run it continuously during long grinding passes.
What size wheels does it take?
It takes 4.5-inch wheels with a 5/8-11 arbor, the common size for small angle grinders.
Can I use it with a diamond blade for masonry?
Yes, with a 4.5-inch diamond or masonry blade. The tool-free guard adjusts to direct sparks and debris.
How does it compare with a cordless Milwaukee grinder?
The corded 6142-30 delivers constant power with no battery swaps, but it is heavier and tethered to an outlet. Cordless M18 models trade some sustained power for portability.
Does it come with a side handle?
It has a 3-position soft grip side handle that can be mounted for left-, right- or top-hand use.
Where is the MILWAUKEE 6142-30 Angle Grinder 4.5 inches cheapest?
At 2M Equipment, for $139.00, as of our latest check.
Where can I buy the MILWAUKEE 6142-30 Angle Grinder 4.5 inches?
2 stores we checked sell it, including Voomi Supply, 2M Equipment.
Part number
6142-30
Country of origin
China

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