Ryobi 120-Volt 4-1/2 in. Barrel Grip Angle Grinder-AG403 - The Home Depot


Model # AG403

Internet # 100057463

Store SKU # 840109

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

Ryobi 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


Model # AG403

Internet # 100057463

Store SKU # 840109

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: seeProposition 65 information

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Assembled Depth (in.)  12.60 in  Assembled Height (in.)  4.92 in 
Assembled Width (in.)  5.51 in  Product Depth (in.)  12.6 in 
Product Height (in.)  4.92 in  Product Width (in.)  5.51 in 
Wheel Diameter (in.)  4.5 in 
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 


Rated 4.3 out of 5 by 53 reviewers.
Rated 4 out of 5 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 out of 5 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 out of 5 by Angle grinder A basic angle grinder that I use as a standby for work December 17, 2014
Rated 4 out of 5 by Great for the price I didn't want to spend a bunch of money, and this unit works very well at a very reasonable price. Two comments: (1) the main handle is fairly thick, not sure how easy it would be to grip for a small-handed person (but I'm not sure than any other grinders are better in this regard); (2) the switch seems to go very easily from off to "locked on," though I think there is a mode for "on while depressed" in the middle of the switch movement. Just be careful if you're using it in "locked on" mode. I've only used it on one project so far, but right now I'm happy with the purchase. The instructions lack any illustrations, but it's not hard to figure out the minimal assembly. September 16, 2014
Rated 4 out of 5 by Good product ! Good price, easy to handle! I recommend it for small works at home. August 28, 2014
2 3 4 5 6 >>


Standard Shipping includes delivery by small parcel service. Processing time varies by product.

Orders for this item may be expedited for an additional fee.

Other Delivery Options:

Express and Expedited shipping options are also available. Estimated arrival times are available in checkout.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.