Makita 6-Amp 4 in. Angle Grinder-GA4030K - The Home Depot


Model # GA4030K

Internet # 202312077

Store SKU # 649247

6-Amp 4 in. Angle Grinder

Makita 6-Amp 4 in. Angle Grinder

This item has been discontinued.
The Home Depot no longer carries this specific product.

$54.00 / each


Model # GA4030K

Internet # 202312077

Store SKU # 649247

The Makita 4 in. Angle Grinder has a 6-amp motor that maintains performance during extended use and grinds at speeds up to 11,000 RPM for the most demanding applications. Weighing only 3.1 lbs., and equipped with a small barrel grip of only 2-1/4 in. plus an angled side handle, it offers great control and comfort. The grinder incorporates labyrinth construction and zig-zag varnish to seal and protect the motor and bearings from dust and debris.

California residents: see  Proposition 65 information

  • Includes grinder, 4 in. grinding wheel, wheel guard, lock nut, side handle, inner flange and case
  • 6 amp motor maintains performance during extended use with speeds up to 11,000 RPM
  • Sliding switch for convenient operation within easy reach of the handle
  • 4 in. grinding wheel for a variety of applications
  • 5/8 in. arbor allows you to fit many accessories
  • Spindle lock for convenient accessory changes
  • 8.2 in. power cord allows you freedom to move around while you work
  • Side, barrel-grip handle for added comfort
  • CSA and UL listed
  • 1-year warranty
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Assembled Depth (in.)  5.591 in  Assembled Height (in.)  11.929 in 
Assembled Width (in.)  14.96 in  Product Depth (in.)  10.5 in 
Product Height (in.)  3.75 in  Product Width (in.)  4.625 in 
Wheel Diameter (in.)  4 in 
Amperage (amps)  Arbor Size  M10 x 1.25 
Color Family  Teal  Cord Length (ft.)  8.2 
Corded Tool Type  Angle Grinder  Cordless/Corded  Corded 
Grinding Wheel Included  Yes  Maximum Speed (rpm)  11000 
Power Tool Product Type  Corded  Product Weight (lb.)  3.7 lb 
Reconditioned  No  Returnable  90-Day 
Side Handle  Yes  Spindle Lock  Yes 
Tools Product Type  Power Tool  Variable Speed  No 
Warranty / Certifications
Certifications and Listings  1-UL Listed  Manufacturer Warranty  1 Year Warranty on tool 


Rated 3.9 out of 5 by 9 reviewers.
Rated 2.0 out of 5.0 by older versions of this model did not hold up for long I have owned 2 older versions of this same model, and either the commutator bearing froze or the armature burnt out and the arcing melts the case. And I use compressed air to clean out the dust after each use as recommended. Trouble is MAkita has the weakest 1 year warranty of the bunch, and that is about how long this model held up. Other trouble is MAkita has one of the only 3/8 " arbor grinders out there and I still have a large selection of discs and wheels to fit this size. Rock and HArd place I am between. December 16, 2012
Rated 1.0 out of 5.0 by Does a great job doesnt last I purchase this grinder for masonry and blew out the motor as recomended, however it burned out after the first month. April 21, 2013
Rated 4.0 out of 5.0 by Works for what I need. I'm using it as a multi purpose tool to cut drywall, metal pipe etc with the cut-off blades. If I had to do it again I'd get a 4 1/2 " tool. A 4" right angle grinder can't cut as deep as a 4 1/2 and the blades don't last as long. this one will get into a tighter spot though. Still, it's done what I need. December 18, 2011
Rated 5.0 out of 5.0 by Outstanding Angle Grinder I have owned this grinder for over 3 years and it works great. I use the tool mostly for my lawn service. It gets used a couple times a week. I use it to sharpen blades and general metal work around the shop. great product for a great price. January 5, 2012
Rated 5.0 out of 5.0 by Awesome Grinder! Great price! We use these grinders in our full time fab shop and are impressed with the quality, lack of vibration and ease of use. They offer excellent durability and Home Depot had the best online prices that we could find. August 17, 2014
Rated 5.0 out of 5.0 by Great grinder and product! Ordered this grinder online. If I knew it didn't have the built in reset button on the bottom end of the grinder like my old one did ( owned it over 10 years before it wore out ), I may not have purchased! Really liked that feature and thought I was getting it again on this new one. I still think this brand is exceptional, that is why I am a repeat customer! Hope it lasts as long as my old one, but without the reset feature, it may burn out much sooner. May 30, 2012
Rated 5.0 out of 5.0 by Great little machine This IS the grinder. Powerful compact and long lasting. January 29, 2012
Rated 5.0 out of 5.0 by heavy duty I highly recommend...very well built and will last a very long time. October 26, 2011
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