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Makita 9557PB Angle Grinder vs Milwaukee 6142-30 Angle Grinder

The Milwaukee 6142-30 is the stronger grinder: 11 amps against Makita's 7.5, tool-free guard and accessory changes, and a 5-year warranty against Makita's 1 year. The Makita 9557PB is lighter and simpler, with a proven record among owners for durability on light jobs. Buy the Milwaukee for heavy metal and concrete work; buy the Makita for occasional grinding, sharpening and light fabrication.

  • Choose the Makita 9557PB if you want a light, simple grinder for occasional grinding, sharpening and light metal work.
  • Choose the Milwaukee 6142-30 if you grind metal or concrete regularly and want more power, tool-free changes and a longer warranty.

Prices

  • Makita 9557PB Angle Grinder: $10.64 at eBay (last seen Nov 10)
  • Milwaukee 6142-30 Angle Grinder: $119.95 at eBay (checked today)
  • Difference: the Makita 9557PB Angle Grinder is $109.31 cheaper than the Milwaukee 6142-30 Angle Grinder at the latest prices (Nov 10 and Nov 14)
Makita
Makita 9557PB 4-1/2-Inch Angle Grinder

Makita 9557PB Angle Grinder

Makita 9557PB 4-1/2-Inch Angle Grinder

5(1 rating)
$10.64at eBayChecked Nov 10
See all prices and details
Visit eBay
Pros
  • Light at 4.6 lbs, easier on the hands overhead
  • Large paddle switch with lock-on for long cuts
  • AC/DC switch works off a generator or DC source
  • Labyrinth seals and armature varnish resist dust
  • Long record of reliability among owners
Cons
  • 7.5 amps bogs down in heavy grinding
  • Guard and wheel changes need the wrench
  • 1-year warranty is short for the class
  • No tool-free guard adjustment
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 2 h ago
See all prices and details
Visit eBay

Store links may earn us a commission.

Pros
  • 11 amps holds speed under load on metal and concrete
  • Tool-free guard and accessory changes save time
  • 5-year limited warranty
  • Airflow system and debris baffles protect the motor
  • Lock-on paddle switch for continuous work
Cons
  • Heavier and bulkier than the Makita
  • No variable speed
  • Listed specs conflict on amps, weight and spindle
  • Overkill for light, occasional jobs

What separates them

Makita 9557PB Angle GrinderMilwaukee 6142-30 Angle Grinder
Motor amperage7.5 A11 A
No-load speed11,000 RPM11,000 RPM (some listings say 12,000)
Weight4.6 lbsHeavier; listed weight is unreliable
Guard and accessory changesWrench and spindle lock neededTool-free guard and accessory change
Warranty1 year5 years limited
SwitchLarge paddle, lock-on/off, AC/DCLock-on paddle
Dust protectionLabyrinth seals and zig-zag armature varnishAdvanced Airflow System with debris baffles
Spindle thread5/8 in-115/8 in-11 (M14 also listed)

Price history

$133.64$10.64
Nov 8Nov 15
  • Makita 9557PB Angle Grinder: lowest $10.64 on Nov 10 at eBay; $85.31 on Nov 14.
  • Milwaukee 6142-30 Angle Grinder: lowest $131.99 on Nov 14 at NAPA; $133.64 on Nov 15.

Prices at every store

Makita 9557PB Angle Grinder

  • eBayNew

    In stockShips from Australia · duties may apply

    $10.64Checked Nov 10
    Visit eBay
  • Delta Diamond ProductsNew

    In stock

    $69.95Free shippingChecked Nov 9
    Visit Delta Diamond Products
  • Home DepotNew

    In stock

    $89.00Free shippingChecked 1 h ago
    Visit Home Depot
  • eBayNew

    Availability unknownSold by paymore_north_raleigh (99.7% positive, 13,400 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $79.99Free shippingChecked Nov 9
    Visit eBay

Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart
  • ToolupCheck price at Toolup

Store links may earn us a commission.

All 41 stores and price history →

Milwaukee 6142-30 Angle Grinder

  • NAPANew

    In stock

    $131.99Checked 1 h 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 45 min ago
    Visit Walmart
  • The Home DepotNew

    In stock

    $139.00Free shippingChecked 1 h ago
    Visit The Home Depot
  • 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 2 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

SpecMakita 9557PB Angle GrinderMilwaukee 6142-30 Angle Grinder
Spindle Thread5/8" - 11 UNCM14
Grinding Wheel4-1/2" (115 mm)—
Sanding Disc4-1/2" (115 mm)—
Wire Cup Brush3-1/2" (90 mm)—
No Load Speed11,000 RPM—
Amperage7.5 A—
Vibration Level7.0 m/s2—
Noise Level85 dB(A)—
Overall Length10-3/4" (273 mm)—
Net Weight4.6 lbs (2.1 kg)—
Power Consumed900±0.01 watt—
Frequency10,000±0.01 revolutions per minute—
Show all 40 specsShow fewer specs
SpecMakita 9557PB Angle GrinderMilwaukee 6142-30 Angle Grinder
color—Black
size—5/8 in
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

What reviewers say

Makita 9557PB Angle Grinder

Owners and reviewers praise the Makita 9557PB for its reliability and power, often noting its durability in professional settings. Some criticize the vibration and noise levels, and a few mention the lack of a tool-free guard.

What people mention
  • VibrationCriticisedUsers report noticeable vibration during extended use, which can be tiring.
  • NoiseCriticisedThe grinder is louder than some users expect, especially under load.
  • Build qualityPraisedReviewers highlight the solid construction and long-term durability.
  • SwitchPraisedThe large paddle switch is easy to use, even with gloves.

Questions and answers

Which is better for grinding concrete?
The Milwaukee. Its 11-amp motor keeps speed under load, and the tool-free guard makes repositioning quick. The Makita will do light concrete work but slows down on sustained passes.
Which lasts longer?
The Milwaukee carries a 5-year limited warranty against Makita's 1 year, and its airflow and baffles target dust ingress. The Makita has a strong reputation for long life in light use, but its shorter warranty reflects lighter-duty intent.
Is the Milwaukee worth stepping up to from the Makita?
Yes if you grind metal or concrete regularly. The extra power, tool-free changes and warranty matter on daily work. For occasional sharpening or light cutting, the Makita is enough.
Which is easier to handle overhead?
The Makita. At 4.6 lbs it is lighter, and its paddle switch is easy to work with gloves. The Milwaukee is heavier and better suited to bench and floor work.
Do both take the same wheels?
Yes. Both use 4-1/2 inch wheels with a 5/8 in-11 spindle, so the same discs and wire cups fit either. Check the guard when switching between grinding and cutting discs.
Does either have variable speed?
No. Both are single-speed grinders. If you need speed control for polishing or stainless work, look at a variable-speed model instead.

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  • Makita 9557PB 4-1/2-Inch Angle Grinder vs DEWALT DWE43231VS Angle Grinder, Corded
  • Milwaukee 6142-30 11 Amp Corded 4-1/2" Small Angle Grinder with Lock-On Paddle Switch vs Milwaukee 6146-30 Grinder
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Buying guides that pick them

  • Best corded angle grinders for metalwork
  • Best 4.5-inch corded angle grinders for cutting metal
  • Best corded 4-1/2 inch angle grinders
Maximum speed—12000 rpm
Is variable speed—N
Rec. use—Professional
Manufacturer—Milwaukee Tool
Charger included—N
Batteries incl—N
Model—6142-30
Weight—1 lb
Has nrtl listing certification—N
Color category—Black
No Load Rpm—12,000
Variable Speed—No
Duty—Heavy Duty
Application—Masonry
Motor Amp—7.0 Amp
Spindle—5/8"-11
Feature—Efficient Grinding, Debris Baffles, Mobility
Compatible With—Flanges