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5.5-Amp Angle Grinder
  • Ryobi
  • Model AG4031G
  • Internet #205558109
  • Store SO SKU #1000050896

5.5-Amp Angle Grinder

$2997 /each
Discontinued Model:

Model # AG403G

Internet #205105603

Ryobi 5.5 Amp 4-1/2 in. Angle Grinder

Discontinued Ryobi

5.5 Amp 4-1/2 in. Angle Grinder

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Product Overview

The Ryobi 4-1/2 in. Angle Grinder uses a powerful 120-Volt AC, 5.5 Amp motor that can generate 11,000 RPM to handle most grinding applications. The grinder's handle adjusts for right or left-handed with an additional possible vertical handle use while its spindle-locking button facilitates easy wheel changes. Metal grinding wheel included.

California residents: see   Proposition 65 information

  • Lightweight design with 3-position handle for left or right-handed use with an additional possible vertical handle
  • Die-cast aluminum gear housing for durability
  • Convenient spindle locking button for quick and easy grinding wheel changes
  • Wheel guard adjusts for use in various applications
  • Wrench storage in side handle
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Name 5.5 Amp 4-1/2 in. Angle Grinder 5.5-Amp Angle Grinder 6.5-Amp Angle Grinder 7.5 Amp 4.5 in. Corded Angle Grinder
Brand Ryobi Ryobi Ryobi Ryobi
Ratings (5) (119) (58) (30)
Reconditioned No No No No
Amperage (amps) 5.5 5.5 6.5 7.5
Power Tool Features No Additional Features No Additional Features Adjustable Handle Position,Grinding Wheel Included,Spindle Lock Adjustable Handle Position,Grinding Wheel Included,Lock On Switch,Spindle Lock
Cordless/ Corded Corded Corded Corded Corded
Wheel Diameter (in.) 4.5 4.5 4.5 4.5
View Product View Product View Product View Product



Product Depth (in.)
Product Height (in.)
Product Width (in.)
Wheel Diameter (in.)


Amperage (amps)
Arbor Size
5/8-11 UNC
Color Family
Cord Length (ft.)
Corded Tool Type
Angle Grinder
Cordless/ Corded
Electronic Speed Control
Grinding Wheel Included
Maximum Speed (rpm)
Power Tool Features
No Additional Features
Product Weight (lb.)
Side Handle
Spindle Lock
Tools Product Type
Power Tool
Variable Speed

Warranty / Certifications

Certifications and Listings
1-UL Listed
Manufacturer Warranty
3 Year

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Customer Questions & Answers

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Customer Reviews

5.5 Amp 4-1/2 in. Angle Grinder is rated 3.0 out of 5 by 5.
Rated 3 out of 5 by from Good for light duty Bought this to help take down a very old, rusty shed in our backyard. Found that it worked, but also found it is very particular about how you mount the wheel on it. First time it looked like it was on properly, but after turning it on, it went elliptical and dug into the protective barrier. After that I found it worked well at cutting through the sheet metal - just be sure to always wear proper eye, head, and ear protection, as well as proper clothing and shoes. Seems good for light duty so far.
Date published: 2014-09-12
Rated 4 out of 5 by from Great for the price I went to home depot intending to rent a grinder, but I ended up buying this because of the low price. I figured it's a good tool to have on hand anyway. I walked out with the grinder, extra disc, gloves and safety glasses for $42. Not too bad. I had a relatively small project to do - cut off 6 3/4" pieces of rebar protruding from concrete steps and grind them flush. The grinder handled the job very well. It would have been nice to have more power, but if you were mindful of how much force you were using it still worked pretty well. Its definitely not a professional tool, but that's not what Ryobi tries to make. The quality of the tool is decent. It feels solid. The switch seems like it will only be comfortable for right handed use, but it does lock in position so it wouldn't be too big of a deal. The screw on handle is the only reason I gave it 4 instead of 5 stars. It had the tendency to loosen while I was grinding. It is nice that the handle also serves as storage for the wrench, though. Overall, its a good light duty grinder. Its not a heavy duty Milwaukee, but its great for small jobs. I would recommend this to a friend.
Date published: 2015-04-16
Rated 1 out of 5 by from Not at all durable Mine is about 6 months old, and the cheap plastic switch broke. Ryobi does not sell internal parts as the cost would not make sense for a $30.00 unit.
Date published: 2015-05-10
Rated 4 out of 5 by from Grinder gets the job done I needed to replace my broken angle grinder so I purchased this because of the price. I wasn't expecting much but overall it perform the way it should. The motor is not as strong as the more expensive models but as long as you don't force it the grinder will cut and grind fine.
Date published: 2015-01-09
Rated 3 out of 5 by from 4-1/2 grinder I bought this grinder because of the price. After using on a project I relized what a 5.5 amp motor could do. This grinder doesn't compare to the 7 or 8 amp grinders. But, for the price I'd buy another one.
Date published: 2014-11-29
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