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Metabo HPT G12SR4 Angle Grinder vs Milwaukee 6142-30 Angle Grinder

The Milwaukee 6142-30 is the stronger grinder for heavy daily work: its 11 amp motor, tool-free guard and tool-free accessory changes cut downtime on metal and masonry jobs. The Metabo HPT G12SR4 is lighter and easier to control one-handed, with a slide switch and quick-off safety feature, so it suits lighter grinding and overhead work. Reviewers of the Milwaukee praise its power and durability; owners of the Metabo HPT like its low weight and slim grip. Neither has variable speed.

  • Choose the Metabo HPT G12SR4 if you want a light, compact grinder for lighter grinding, overhead work and one-handed control.
  • Choose the Milwaukee 6142-30 if you grind hard and often and want maximum power plus fast, wrench-free wheel and guard changes.

Prices

  • Metabo HPT G12SR4 Angle Grinder: $48.99 at Way Source (checked today)
  • Milwaukee 6142-30 Angle Grinder: $119.95 at eBay (checked today)
  • Difference: the Metabo HPT G12SR4 Angle Grinder is $70.96 cheaper than the Milwaukee 6142-30 Angle Grinder today
Metabo HPT
Metabo HPT G12SR4

Metabo HPT G12SR4 Angle Grinder

Metabo HPT G12SR4

4.5(2 ratings)
$48.99at Way SourceChecked 2 h ago
See all prices and details
Visit Way Source
Pros
  • Light at about 4 lbs for better control
  • Slim grip reduces fatigue
  • Quick-off slide switch adds safety
  • Overload protection and low-profile gear case
Cons
  • Less power for heavy grinding
  • Wheel changes need the spanner wrench
  • No variable speed
Milwaukee
Milwaukee 6142-30 11 Amp Corded 4-1/2" Small Angle Grinder with Lock-On Paddle Switch

Milwaukee 6142-30 Angle Grinder

Milwaukee 6142-30 11 Amp Corded 4-1/2" Small Angle Grinder with Lock-On Paddle Switch

5(2 ratings)
$119.95at eBayChecked 3 h ago
See all prices and details
Visit eBay

Store links may earn us a commission.

Pros
  • 11 amp motor for tough grinding
  • Tool-free wheel and guard changes
  • Debris baffles and airflow system protect the motor
  • 5-year limited warranty
Cons
  • Heavier and bulkier than the Metabo HPT
  • Paddle switch layout is not for everyone
  • No variable speed

What separates them

Metabo HPT G12SR4 Angle GrinderMilwaukee 6142-30 Angle Grinder
Motor power6.2 amp, 980 W max output11 amp rated
No-load speed10,000 RPM11,000 RPM (12,000 RPM also listed)
WeightAbout 4.0 lbsHeavier, built for heavy-duty use
Accessory changesSpindle lock with spanner wrenchTool-free accessory change, no wrench
Guard adjustmentStandard guard, tool requiredTool-free adjustable guard
SwitchLeft-mounted slide switch with quick-offLock-on paddle switch
Dust and motor protectionOverload protection, smaller gripAdvanced airflow system with debris baffles
WarrantyNot stated in the listing5-year limited warranty

Price history

$131.99$48.99
Nov 14Nov 15
  • Metabo HPT G12SR4 Angle Grinder: lowest $48.99 on Nov 14 at Way Source.
  • Milwaukee 6142-30 Angle Grinder: lowest $131.99 on Nov 14 at NAPA; $131.99 on Nov 15.

Prices at every store

Metabo HPT G12SR4 Angle Grinder

  • WalmartNew

    In stock

    $49.00Free shippingChecked 2 h ago
    Visit Walmart
  • InstacartNew

    In stock

    $49.00+ $10.00 shippingChecked 2 h ago
    Visit Instacart
  • Way SourceNew

    Availability unknown

    $48.99Checked 2 h ago
    Visit Way Source
  • AmazonNew

    Availability unknown

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

    $49.00Free shippingChecked 2 h ago
    Visit Amazon

Store links may earn us a commission.

All 12 stores and price history →

Milwaukee 6142-30 Angle Grinder

  • NAPANew

    In stock

    $131.99Checked 54 min ago
    Visit NAPA
  • WalmartNew

    In stockSold by KKID-DealsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $133.64Free shippingChecked 54 min ago
    Visit Walmart
  • Blain's Farm & FleetNew

    In stock

    $139.00Checked 54 min ago
    Visit Blain's Farm & Fleet
  • eBayNew

    Availability unknownSold by pawnltd (99.8% positive, 4,900 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $119.95Free shippingChecked 3 h ago
    Visit eBay

Also available at

  • WalmartCheck price at Walmart

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

All 20 stores and price history →

Specs compared

SpecMetabo HPT G12SR4 Angle GrinderMilwaukee 6142-30 Angle Grinder
Maximum Speed10,000 RPM12000 rpm
Variable SpeedNoNo
Overload ProtectionYesNo.
Power SourceCorded Electric—
Amperage6.2 Amp—
Voltage120 V—
Wattage980 W (max output)—
Grinder TypeAngle Grinder—
Grinder BrandMetabo HPT—
Grinder Model NumberG12SR4, G12SR4M—
Grinding Wheel Size4-1/2 in—
ApplicationsGrinding—
Show all 40 specsShow fewer specs
SpecMetabo HPT G12SR4 Angle GrinderMilwaukee 6142-30 Angle Grinder
Height5.08 cm—
Length10-5/32 in.—
Width5.59 in.—
Safety FeaturesQuick-off feature—
Vibration ReductionYes (smaller grip design)—
Switch TypeLeft-mounted slide switch—
Wheel TypeAbrasive Depressed Center Wheels—
Maximum Rotational Speed10,000 RPM—
Power980 W (max output)—
Motor Type

Questions and answers

Which is better for heavy metal grinding?
The Milwaukee 6142-30. Its 11 amp motor and higher no-load speed hold up better under sustained load than the 6.2 amp Metabo HPT.
Which is easier to use overhead or one-handed?
The Metabo HPT G12SR4. At about 4 lbs with a slim grip, it is easier to control in tight or overhead spots.
Which lasts longer?
The Milwaukee has the edge on paper with its airflow system, debris baffles and 5-year limited warranty. The Metabo HPT has overload protection but no stated warranty.
Do either have variable speed?
No. Both are single-speed grinders, so pick a variable-speed model if you need to match RPM to the wheel.
Is the Milwaukee worth stepping up to?
Yes if you grind often and value power and fast wheel changes. If you mostly do light work, the lighter Metabo HPT is easier to handle.

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More comparisons

  • Milwaukee 6142-30 11 Amp Corded 4-1/2" Small Angle Grinder with Lock-On Paddle Switch vs DeWALT Corded 4-1/2-in. Small Angle Grinder (DWE4214)
  • Makita 9557PB 4-1/2-Inch Angle Grinder vs Milwaukee 6142-30 11 Amp Corded 4-1/2" Small Angle Grinder with Lock-On Paddle Switch
  • Metabo HPT G12SR4 vs Makita 9557PB 4-1/2-Inch Angle Grinder
  • Metabo HPT G12SR4 vs DeWALT Corded 4-1/2-in. Small Angle Grinder (DWE4214)
  • Milwaukee 6142-30 11 Amp Corded 4-1/2" Small Angle Grinder with Lock-On Paddle Switch vs Milwaukee 6146-30 Grinder
  • Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder, Paddle Switch No-Lock vs Milwaukee 6142-30 11 Amp Corded 4-1/2" Small Angle Grinder with Lock-On Paddle Switch

Buying guides that pick them

  • Best corded 4-1/2 inch angle grinders
Single Phase
—
No Load Speed10,000 RPM—
Spindle Thread Size5/8"-11—
color—Black
size—5/8 in
Spindle Thread—M14
Included Accessories—Anti-vibration Handle
Brand—Milwaukee
Power grinder type—Power Angle
Power type—Manual
Disc size—4.5 in
Amps—11 A
Volts—0 mV
Battery capacity—0 Ah
Is variable speed—N
Rec. use—Professional
Manufacturer—Milwaukee Tool
Charger included—N
Batteries incl—N