Message to Our Customers
Discontinued

Ryobi

Model # AG403

Internet # 100057463

120-Volt 4-1/2 in. Barrel Grip Angle Grinder

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

$29.98 /each

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PRODUCT OVERVIEW

Model # AG403

Internet # 100057463

Ryobi introduces the Ryobi 4-1/2 in. Barrel Grip Angle Grinder. This tool uses a powerful 120-volt AC, 5.5-amp motor that can generate 11,000 RPM to handle most grinding applications. To learn more about Ryobi tools go to Ryobitools.com and check out Ryobi Nation. See below for more information on this tool.

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
  • a target=_blank" style="color:#f96302" href=https://www.ryobitools.com/nation/Join Ryobi Nation and have an opportunity to win prizes, share your Ryobi power tool experiences and receive exclusive offers for Nation members, Just click on the link to get started https://www.ryobitools.com/nation /a"
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Info & Guides

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SPECIFICATIONS

Dimensions
Product Depth (in.) 
12.6 in 
Product Height (in.) 
4.92 in 
Product Width (in.) 
5.51 in 
Wheel Diameter (in.) 
4.5 in 
Details
Amperage (amps) 
5.5 
Arbor Size 
5/8-11 UNC 
Color Family 
Blue 
Cord Length (ft.) 
Corded Tool Type 
Angle Grinder 
Cordless/Corded 
Corded 
Grinding Wheel Included 
Yes 
Maximum Speed (rpm) 
11000 
Power Tool Product Type 
Corded 
Product Weight (lb.) 
4.1 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 
3 Year Manufacturer's Warranty 

CUSTOMER REVIEWS

Rated 4.3 out of 5 by 53 reviewers.
Rated 4.0 out of 5.0 by Great value for the money and can be carefully used for tougher jobs This tool saved us about $1,400 when we re-roofed our home. We had our house re-roofed recently and the contractor wanted $1,500 to remove and haul away the old roof. We decided that we'd do this ourselves and save some money, so out came the Ryobi angle grinder. We decided to cut the roof into 4' squares to make it easier to drop into the dumpster to haul away. The roof had been re-sealed multiple times since the house was built in the 1940's the material was 2" thick in places and comprised of hot mopped rolled felt and then a layer of bitumen with stones on top. We bought a 4 1/2" diamond blade to go in the grinder so it would handle the stone and I have to say that I was impressed by the durability of this budget grinder. I would say that if you wanted to run it professionally (ie to do the roof in one morning with a crew), this would probably overheat quite quickly however we were able to work in 4' squares which allowed the grinder to cool between cuts as we removed the old roofing material between cuts. We also had to let the blade cool as once warm, it would melt the bitumen and this would gum up the blade until the bitumen cooled down enough for us to peel it out of the blade shield. It made the majority of the cuts without any problems and in the end, as we were about 3/4 of the way through the job, the brushes in the motor expired and it stopped working so we went to Home Depot and bought another Ryobi grinder. We've since bought new brushes online and the old grinder is back in service. Even going through two diamond blades and one grinder, we were still about $1,400 ahead on the alternative so it gets a big thumbs up in my book. We had previously used the grinder to flatten out some high spots in a concrete slab before laying a carpet and also to cut wire fence clips when we removed a chainlink fence from the hard and it didn't have any issues with grinding concrete or cutting metal using the thinner cutting wheel. We did find that the wheel collar that comes with the grinder was too big for the thinner cutting wheels (the wheels are still free to rotate when fully tightened) so we added a large round washer under the collar and this fixed the problem. What I really appreciate about this model is that the blade shield can be adjusted allowing it to be used at virtually any angle. The only feature that would make it any better would be a variable speed control, but you really can't expect that for this price! If you just want a reliable, basic grinder to use once in every while around the home, this is the tool for the job. July 16, 2013
Rated 4.0 out of 5.0 by It is easy to work with and operates flawlessly. The motor is powerful and all of the features are correct. I have had it for a month or so and have used it on two projects: cutting stone and cement board for a large fireplace, and cutting steel cable for cable railings. It worked well on both. I keep it and accessories in an old tool bag I had for my old Harbor Freight grinder, which finally failed. This is an upgrade in power and a worthy successor. Looks as good as the higher priced choices. January 14, 2014
Rated 4.0 out of 5.0 by Lasted four years I had this grinder, It has lasted me four years and hundreds of hours of abuse. I used it to do a complete Solid Axle swap on my vehicle and used it to cut parts out of 3/16" mild steel plate. Recently it finally short circuited, smoked and blew up. I ran it over with my truck and left it outside in the rain many times and it didn't affect it at all. It was a great grinder for the money. February 29, 2012
Rated 4.0 out of 5.0 by good deal for price this product is a very inexspensive grinder. It has a lot of power and an easy change of grinding wheels. the only disadvantage is that the grinder can only fit 4'' grindin/cutting wheels. November 22, 2006
Rated 5.0 out of 5.0 by Great grinder, can't live without one. I use this for my work on garage doors. I cut through 18 gauge steel, aluminum, I've grinded bolt heads off, I've grinded 3" lag bolts down to 1" lag bolts with triangle tips, I've even sharpened my axe with this grinder. A few things to note. The grinding blade it comes with is very thick, I think about 1/4" thick. This is okay for sharpening or rounding edges. However when cutting through things, you want a thinner blade, like a 1/8". On one hand they wear down a LOT faster, but on the other hand they cut through a LOT faster. Even so, I've probably cut through a good 50-60 feet worth of steel, and several bolts, before it needed to be replaced. The grinder shield gets in the way too much. So much so that I threw it away, and just use my glasses and tough out the sparks. The side grip is removable simply by un threading it, and has three different positions. Left of the blade, right of the blade, and above the blade. I do use the grip, and i change it up a lot depending on what kind of cut i need to make. The RPM's on this grinder are fine for my line of work, I think the only reason you would want a bigger one is if you do more industrial work such as a lot of machining, maybe modern blacksmithing, etc. April 27, 2014
Rated 5.0 out of 5.0 by Ryobi 4.5 inch grinder I was a little skeptic of the grinderwhen i got it because the cost was a lot lower than most. After I started using it to grint old rust and paint from an old wagon I was impressed to say the least. I love that the wrench stores away right in the handle. I am notorious for loosing items like that. Great little grinder. June 3, 2014
Rated 5.0 out of 5.0 by tool for changing wheels and blades stores in handle is great feature Preforms as expected, only thing I found is with stability handle having slight forward angle Not recommended for left handed user. Gloves may help lefties but I feel gloves reduce the grip of and control over power tools. July 9, 2013
Rated 5.0 out of 5.0 by Hard worker for the price I do a lot of welding and I always set up two angle grinders. One for grinding and one for wire wheeling slag. In the past I had spent three times the a mount of money on other grinders and decided to give the lesser expensive one a shot. I've been using this grinder for two years now and it works just as well as the more expensive ones. Even if it wore out in a year it would be okay at the price, but it hasn't. I'm very satisfied with it for my application and one of these days I'll pick up one or two more. The thing is, the more expensive grinders had to be replaced every couple of years and I have yet to replace this one. I also use it for my cut off wheels and it works great for those, too! October 26, 2013
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