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Makita GA5020 5" SJS Angle Grinder, with AC/DC Switch, Blue

  • Based on 142 reviews
Condition: New
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$131.65 Why this price?
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Availability: Only 1 left in stock, order soon!
Fulfilled by Jstorez (S/N Recorded)

Arrives Tuesday, Jul 8
Order within 16 hours and 10 minutes
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Features

  • Powerful 10.5 AMP motor delivers 11,000 RPM to handle the most demanding applications
  • SJS technology is a mechanical clutch system that helps prevent motor and gear damage by allowing the drive shaft to slip if the wheel is forced to stop
  • Electric brake for maximum productivity
  • Rubberized soft grip handle provides increased operator comfort
  • Rear handle trigger switch with no lock-on feature

Description

Makita’s 5” SJS™ angle Grinder combines 10.5 amp power with comfort and motor-protection features for longer-lasting industrial performance. The GA5020 is engineered with Makita’s innovative - SJS technology is a mechanical clutch system that helps prevent motor and gear damage Makita's 5-Inch SJS Angle Grinder (model GA5020) combines 10.5 amp power with comfort and motor-protection features for longer-lasting industrial performance. The GA5020 is engineered with Makita's innovative Super Joint System (SJS) to protect the gears for longer tool life.10.5 AMP Motor Delivers 11,000 RPM The GA5020 is powered by a 10.5 amp motor that delivers 11,000 rpm, with electric brake for maximum productivity. The labyrinth construction seals and protects the motor and bearings from dust and debris for longer tool life. In addition, the armature is sealed by a protective zig-zag varnish which prevents contamination by creating a barrier under rotation.Super Joint System (SJS) Protects the Gears The GA5020 is engineered with SJS, an innovation from Makita that protects the gears by automatically disengaging the gears from the motor should the grinding wheel accidentally catch or bind.Comfort and Ergonomics The GA5020 weighs just 5.9 pounds and is built with comfort and ergonomic features for extended use. The ergonomic rubberized handle with trigger switch provides easy operation, and the gear housing can be positioned every 90 degrees for operator convenience. In addition, the side handle can be easily installed on either side of the tool.Versatile Design for a Range of Applications The GA5020 is a versatile and powerful grinder engineered for demanding applications including cutting, ferrous metal, paint and rust removal, shipyard maintenance, heavy machinery, metal polishing, general steel grinding, auto repair work, cutting brick and masonry, and restoration work. The grinder is built for welders, fabricators, plumbers, masons, electricians, automotive technicians, stone and tile workers, HVAC, and general contractors seeking a best-in-class industrial quality angle grinder. The GA5020 is just another example of Makita's commitment to innovative technology and best-in-class engineering.About Makita's Super Joint System (SJS) Super Joint System (SJS) is an innovation from Makita engineering where the motor armature and spiral bevel gear are linked by a coil spring. If the grinding wheel catches or binds, the coil spring relaxes and disengages the gears from the motor. As the grinding wheel stops, the gears and motor are protected. Makita's growing line of SJS- equipped grinders includes models ranging from a 1/4-inch die grinder to a 7-inch angle grinder.About Makita Makita is a worldwide manufacturer of industrial quality power tools and offers a wide range of industrial accessories. Makita applies leading-edge innovation to engineer power tools that are more compact and energy efficient, yet deliver industrial strength power and results. Makita U.S.A., Inc. is located in La Mirada, California, and operates an extensive distribution network located throughout the U.S. For more information, please call 800/4-MAKITA () or visit makitatools.com. Makita is Best in Class Engineering.Warranty Every Makita tool is thoroughly inspected and tested before leaving the factory. If you are not satisfied with any Makita tool within 30 days of purchase, return it and Makita will provide a replacement or refund. Each Makita tool is warranted to be free of defects from workmanship and materials for the period of ONE YEAR from the date of original purchase. Should any trouble develop during this one-year period, return the COMPLETE tool, freight prepaid, to one of Makita's Factory or Authorized Service Centers. Please seefor complete details.What's in the Box Makita GA5020 5-Inch SJS Angle Grinder, 10.5 AMP includes: 5-inch grinding wheel, side handle, tool-less wheel guard, inner flange, lock nut, and lock nut wrench. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); From the Manufacturer The Makita GA5020 5 inch angle grinder has SJS – Super Joint System, this engineering design helps prevent gear damage. The powerful 10.5 amp motor delivers more output for increased performance. There are externally accessible brushes for greater serviceability and an AC/DC switch for use with alternative power source. Side handle included offers better leverage and control. See more

Brand: Makita


Product Dimensions: 14"L x 1"W x 1"H


Style: Music


Power Source: electric-powered


Color: Green,black


Brand: ‎Makita


Product Dimensions: ‎14"L x 1"W x 1"H


Style: ‎Music


Power Source: ‎electric-powered


Color: ‎Green,black


Item Weight: ‎6 Pounds


Voltage: ‎120 Volts


Wattage: ‎1.26E+3


Maximum Rotational Speed: ‎11000 RPM


Global Trade Identification Number: ‎49


Manufacturer: ‎Makita


UPC: ‎088381083249 094714385355 718472616437 640024943084


Part Number: ‎GA5020


Item Weight: ‎6 pounds


Country of Origin: ‎China


Item model number: ‎GA5020


Is Discontinued By Manufacturer: ‎No


Size: ‎One Size


Thickness: ‎1 Inches


Item Package Quantity: ‎1


Special Features: ‎compact


Included Components: ‎Inner Flange, 5" Tool-Less Wheel Guard (135108-2), Lock Nut Wrench, Side Handle, Lock Nut, 5" X 1/4" X 7/8" Inox Grinding Wheel, 36 Grit (A-95962)


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎1-year warranty


Date First Available: November 9, 2005


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Buen producto y buen despacho!
Una herramienta muy útil, llegó en perfectas condiciones y antes de lo estimado, me a gustado mucho! Recomendado!
Reviewed in the United States on May 31, 2025 by isma isma

  • This Thing Fuxz
My God I upgraded from an old Makita four and a half inch angle grinder that I bought on Amazon about 9 years ago. Considering that I use an angle grinder pretty much every single day I'm not sure why it took me this long to upgrade. Rat tail... You'll either love it or you'll hate it. Myself, I absolutely love it. Of course there's going to be times where you need to get in tight somewhere and maybe the 4-inch or 4 and 1/2 in paddle style is going to be a necessity. In my case 90% of the time if I'm cutting metal or cleaning up welds the extra size on this grinder does not affect anything. I had no idea what I was missing. I have always been loyal to Makita, like I said my old one was still good as the day I bought it with daily use for over 9 years. I just wanted to upgrade and try something new. The brake is probably the most amazing thing since sliced cheese. I had no idea what I was missing. The power, the cut speed, the low vibration, the noise, everything is an improved version of my baseline 4.5" model. Cannot recommend this enough. If you're on the fence pull the trigger ... show more
Reviewed in the United States on December 23, 2024 by Dennis Emerson

  • Great Product
As always a great product from Makita !! Grinder runs very smoothly.
Reviewed in the United States on April 27, 2025 by Brian y.

  • Braking System
This equipment is akin to a Roll's Royce of grinders. I have another one, a 4 1/2" Metabo HPT and this thing blows that out of the water by far, granted this is 3 times the price. The braking system is the highlight for me due to the short amount of time it takes for the disc to completely stop, the quick adjustable guard is amazing, which also means you won't throw away the guard, the soft-start means your beginner buddy won't be intimidated by the initial kick of the grinder and makes it safer if you forget to let the RPMs reach max before putting on work coupled with the SJS system, and the ergonomics is my favorite. I am big fan of the deadman's switch trigger, rather than the paddle-style or press-and-slide of the Metabo. Although this one doesn't have a safety lock, if you're not worried about OSHA, this is one sweet grinder. 11K RPM means you'll be able to get a lot of 5" and 4 1/2" discs on this pretty easily. All in all, this is a pretty sweet grinder and its power means you can throw most fabrication jobs at it and it'll chew it up rather quickly. ... show more
Reviewed in the United States on December 7, 2020 by Ralph

  • Makita grinder
Love the price was reasonable shipped fast needed ASAP.
Reviewed in the United States on November 14, 2024 by Rodney Englehaupt Sr

  • Junk
Ground one piece of pipe and a completely quit working. Never had issues with the same grinder bought from tractor supply or any other store
Reviewed in the United States on January 3, 2025 by Abe

  • 5” Makita grinders
The grinders are AC/DC which work perfect on my welding truck out fitted with a SA200 the has a DC power source. So far all is working perfectly.
Reviewed in the United States on August 19, 2024 by that kenny

  • Buy Once Cry Once and Your grandkids will inherit a great angle grinder too!
Buy once, cry once. This is coming from someone with limited funds who often does buy and love Wen, Harbor Freight, or China direct. But at this price this is indeed a DEAL. This model lacks the OSHA compliant thumb press trigger lock mech so if you intend to use this in industry go for the model that costs $7 more but for hobbyists this is the way to go. Just be careful putting it down but the trigger has a very satisfying and heavy snap action, so “self-actuation” would fall under the category of user error in my opinion. The trigger itself is a good name brand button everything on the inside of this thing is extremely well made and tough as nails. After months of use there’s been very little ingress of dirt into the head assembly or casement anddd ummm yeah just buy it. It’s one of those tools that makes you say things like “say hello to my little friend” and “That? That’s not a knife... THIS IS A KNOIFE” ... show more
Reviewed in the United States on November 4, 2020 by Sam

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