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Model # GA4030

Internet # 203231751

4 in. 6-Amp Angle Grinder

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

$52.00 /each




Model # GA4030

Internet # 203231751

Store SO SKU # 1000388849

Powerful and comfortable to use, the Makita 4 in. 6-Amp Angle Grinder is deal for a wide range of applications, including weld smoothing, surface preparation and cutting material. Featuring a powerful 6 amp motor that delivers an impressive 11,000 RPM, this grinder handles your most difficult applications with ease. Compact and lightweight, this tool has a barrel grip of only 2-1/4 in., a side handle positioned at a 20-degree angle and weights just 3.1 lbs. to provide comfort and control no matter how long the job lasts. Durably made with labyrinth construction and a zigzag varnish to seal and protect the motor and bearings from dust and debris, this tool is perfect for DIY projects or for use on the jobsite.

California residents: see  Proposition 65 information

  • Powerful 6 amp motor delivers 11,000 RPM for the most demanding applications
  • Small 2-1/4 in. diameter barrel grip for added comfort
  • Labyrinth construction seals and protects the motor and bearings from dust and debris for longer tool life
  • Refined design at only 3.7 lbs. for reduced operator fatigue
  • All ball-bearing design and metal gear housing for added durability
  • Externally accessible brushes for convenient serviceability
  • Protective zigzag varnish seals the armature from dust and debris for longer tool life
  • Machined bevel gears provide up to two times longer service life than previous models
  • Side handle is positioned at an increased 20-degree angle for added comfort and control
  • Includes: 4 in. 6-Amp Angle Grinder, Depressed Center Wheel, Grip and Lock Nut Wrench
  • 1-year warranty
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Wheel Diameter (in.) 
4 in 
Amperage (amps) 
Arbor Size 
M10 X 1.25 
Color Family 
Cord Length (ft.) 
Corded Tool Type 
Angle Grinder 
Grinding Wheel Included 
Maximum Speed (rpm) 
Power Tool Product Type 
Product Weight (lb.) 
3.7 lb 
Side Handle 
Spindle Lock 
Tools Product Type 
Power Tool 
Variable Speed 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 
Manufacturer Warranty 
1 Year Warranty 


Rated 4.9 out of 5 by 10 reviewers.
Rated 5.0 out of 5.0 by Fantastic, cuts through anything Years ago I worked at a 4wd shop, so I all my friends started bringing me their rigs. I quickly realized how much I needed some quality metal working supplies. This grinder will cut through anything. In the last month, I've cut 4 separate chrome bumpers, into high clearance bumpers. 3/8 steel for winch mounting plates. Taken rusty bolts off doors to pull them off for the summer. The grinder handled everything perfectly, and with ease. Now when my friends ask for a custom fabrication, I know it will be easily completed. I cannot recommend this product enough. It makes metal working fun. April 8, 2014
Rated 5.0 out of 5.0 by It's a fine smooth running tool. I own and use grinders. I do stone work with diamond blades. Cutting stone with a turbo wheel requires a tool that is well balanced and smooth running. This is my favorite grinder, I own Hitachi, Bosch, Milwaukee, Rigid, Flex, and just bought two DeWalt's. They will be going on trial within the next few weeks so I'll let you know how they turn out. I've been in the construction field over 40 years and using grinders heavily for the past twenty. A grinder that is not balanced will wear you out long before the job is done. When i pick up one of these tools i will work nonstop for 2 hrs, take a break and then go on to put in an 8 to 10 hour day. The tool doesn't get much of a break and shouldn't break. June 26, 2014
Rated 5.0 out of 5.0 by Reliable and high quality The grinder works very well. It comes with a cutting and a grinding attachment so you're ready for almost anything. The grinder easily cut through a pair of 20mm bolts! April 1, 2014
Rated 5.0 out of 5.0 by great grinder for occasional use Bought grinder for porcelain tile. Worked fine but the tile was so brittle it would crack before finished. Not the fault of the grinder. Good quality, great price. Am sure I'll find many uses in the future. March 11, 2014
Rated 5.0 out of 5.0 by the little grinder that CAN! Makita, okay, but made in china... I hesitantly pluncked down my $40 froggys, but i must say this little grinder surprised me! It has an adapter to allow use of 4" or 4 1/2" cut-off and grinding wheels. I just used it for demolition of a relatively small bathroom tile floor using a 4 1/2" diamond cut-off wheel, & it never stuttered! I ran it hard all day, half expecting it to give out, but no matter what i threw at it, it kept going. This was the first time i had to really rely on it, & it came through like a champ! It even fit in a few places that a 4 1/2" grinder wouldn't have made it. I've owned this tool for a little over six months, but before now have used it fairly lightly, cutting bolts, rebar, etc. as well as light metal grinding. This grinder has an M10x1.25 arbor, so you'll need to pick up an M10x1.25 to 5/8"-11 adapter if you want to use it with most cup wheels. I definitely consider this tool to be an excellent buy, & would recommend it to a friend. December 14, 2014
Rated 4.0 out of 5.0 by First Angle Grinder I have purchased Used this tool just once so far, but it worked like a charm out of the box. I am a DIYer, and its ergonomic design makes it easy to to hold and cut with. I intend to use it far more over the holidays for maintenenace and repair tasks. So far, so good. December 10, 2014
Rated 5.0 out of 5.0 by Great value, strongly made We discovered that our new sink did not fit into the opening in our granite counter. The plumber did not cut out granite so we were stuck finding a professional for a tiny job (Ha! Ha!) or doing it ourselves. We took ourselves to the HD and bought this Makita grinder and a diamond blade. For the price (about $50) this tool seemed very well made and powerful. It did the job in 15 minutes. A great buy and lot cheaper than any professional. July 1, 2014
  • 2015-11-26 T11:23:56.509-06:00
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