Makita GA4590 4-1/2" SJS™II High-Power Angle Grinder
Makita

Makita GA4590 4-1/2" SJS™II High-Power Angle Grinder

$244$386Save 37%5.0(10 reviews)
Mubboo Score C
Buy on Amazon $244

Price as of 2026-06-03. Check Amazon for the current price.

Quick Decision

Mubboo Score
C
Best For
Buyers who prioritize quality over price in Angle Grinders
Skip If
You're on a tight budget
Reviews
10+ · limited data

Is This Right For You?

✅ Great for
  • Buyers who prioritize quality over price in Angle Grinders
  • Those who want a top-rated option — in the top 1% of Angle Grinders by rating
  • Makita loyalists — the brand spans 134 products in our database
⚠️ Think twice if
  • You're on a tight budget — $105 above the category average of $139
  • You prefer well-established products — only 10 reviews, so the rating may still shift
💡 Consider instead
  • Makita 9557PBX1 4-1/2" Paddle Switch Cut-Off/Angle Grinder — 49% cheaper at $124 (Score A-)

📊 Based on data analysis of 55 products in this category.

Mubboo Score: C

Quality10.0/10
based on 5.0/5 customer rating
Popularity2.5/10
10 reviews, top 100% in Angle Grinders
Value0.9/10
priced below 9% of Angle Grinders

How It Compares

This Product
Makita GA4590 4-1/2" SJS™II High-Power Angle Grinder
Most Popular
DEWALT 20V MAX* Angle Grinder Tool Cordless Brushless
Best Rated
Makita 9557PBX1 4-1/2" Paddle Switch Cut-Off/Angle Grinder
Best Value
Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion 4-1/2 in. /
Price$244$149.99$124$168.49
Rating5.0/54.8/54.8/54.8/5
Reviews109,5623,9582,383
Mubboo ScoreCA-A-B+

Quick Specs

Color
Teal
Style
Angled
Voltage
120 Volts
Wattage
1800 watts
Material
Aluminum
Style Name
Angled
Unit Count
1.0 Count
Manufacturer
Makita

What People Say

Synthesized from 40 reviews · 100% verified purchases.

Check whether a spanner wrench and discs are included, as some models ship without them. For cordless grinders, keep a spare battery handy for longer jobs.

Praised for
  • Powerful Performance
  • Great Value for Money
  • Comfortable and Ergonomic Handling
  • Cordless Convenience
  • Versatile for Multiple Tasks
Common complaints
  • Difficult or Awkward Switch Operation
  • Missing Accessories (Wrench, Discs)
  • Short Battery Life on Cordless Models
  • Poor Quality Included Wheels

Related Video Reviews

Key Features

  • Powerful 15 AMP motor delivers more output and variable (2,800 - 11,500) RPM
  • SJSII provides a leaf spring and cam gear drive mechanism that is engineered to reduce vibration for increased operator comfort during extended use
  • Vibration absorbing side handle provides increased comfort on the job
  • Electronic controller provides constant speed control which automatically applies additional power to the motor to maintain speed under load
  • Electronic Controller provides soft start which is designed to suppress start-up reaction for smooth start-ups and longer gear life

Source: product listing on Amazon.

About Makita

  • 134 products in our database
  • Average rating: 4.7/5 across all products
  • Price range: $4.99$2092
  • Categories: Angle Grinders, Brooms, Chainsaws, Circular Saws, Cordless Drills, Hand Tool Sets

Other Angle Grinders

Bottom Line

Makita GA4590 4-1/2" SJS™II High-Power Angle Grinder earns Mubboo Score C. Priced at $244 — a premium option, above the category average of $139. Rated 5.0/5 from 10+ reviews. Strong buy if: buyers who prioritize quality over price in angle grinders, those who want a top-rated option. Skip if: you're on a tight budget — DEWALT 20V MAX* Angle Grinder Tool Cordless Brushless (Score A-, $150) may fit better.

Buy on Amazon $244Last verified: 2026-06-03

Frequently Asked Questions

Is the Makita GA4590 4-1/2" SJS™II High-Power Angle Grinder worth buying in 2026?

It earns a Mubboo Score of C, with a 5.0/5 rating from 10 reviews — better than 100% of Angle Grinders we track.

How much does the Makita GA4590 4-1/2" SJS™II High-Power Angle Grinder cost?

It is currently $244 — premium-tier pricing for Angle Grinders.

How does the GA4590 4-1/2" SJS™II High-Power Angle Grinder compare to other Angle Grinders?

The category's most-reviewed alternative is the DEWALT 20V MAX* Angle Grinder Tool Cordless Brushless (4.8/5, 9,562 reviews, $149.99). The GA4590 4-1/2" SJS™II High-Power Angle Grinder carries a Mubboo Score of C vs A-.

Sources & References

Mubboo may earn a commission from purchases made through links on this page. Prices and availability are accurate as of the last sync (2026-06-03) and may change.