Model # HD-AWD40

Internet #202884364

Store SKU #140029

RIDGID 4 in. Double Row Diamond Cup Wheel
0850650001748

RIDGID

4 in. Double Row Diamond Cup Wheel

  • Works for wet and dry applications
  • Delivers 15,000 RPM
  • Ideal for leveling, removing coating and grinding concrete
$39.97 /each

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Product Overview

RIDGID Double Row Diamond Cup Wheels are engineered with top-grade industrial diamond for maximum cutting performance and superior grinding life. These cup wheels can be used for a wide range of projects from shaping and polishing of concrete surfaces and floors, to fast aggressive concrete grinding or leveling and coating removal. Heavy-duty steel core offers lasting durability. 4 in. cup wheel will fit a variety of small angle grinders with a 5/8-11 threaded arbor. Suitable for both dry or wet cutting conditions.

  • Professional-grade quality
  • Engineered for dry or wet concrete grinding, leveling, or coating removal
  • Double row segment design is formulated with high-grade diamond and unique bond matrix for fast and aggressive grinding
  • For use on 4 in. or 4.5 in. angle grinders
  • 5/8 in. - 11 mm threaded arbor
  • MAX RPM 15,000
  • Faster grinding and longer life than standard abrasive grinding wheels

Info & Guides

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Specifications

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Customer Questions & Answers

Can I wet grind concrete with the Rigid diamond cup wheel?

I need to grind down a hump in my concrete floor and want to minimize dust.
Asked by: Anonymous
Works great with water. I suggest working small areas and stand a few 2x6 blocks around the area you are working to contain the wet muddy spray. This worked great for me and made cleanup a lot easier
Answered by: grinder
Date published: 2016-12-06

Can I use a 4" grinding wheel on a grinder designed for 4.5" wheels?

Asked by: BobM
Yes, you just don't want to use wheels that are bigger than intended for your grinder.
Answered by: dustin1101
Date published: 2016-10-15

Can I attach this to a cordless drill?

Asked by: StanleyRoper
I wouldn't think this would work well because a drill isn't fast enough. I think the wheel would be very difficult to control. Also you'd need to find some sort of arbor to adapt the 5/8"-11 thread to your drill chuck.
Answered by: dustin1101
Date published: 2016-10-15

What is the minimum rpm's for this product?

Asked by: timthenontoolman
I'm not totally sure but I'd say you'd want around half what my grinder does minimum.. so around 7,000.
Answered by: dustin1101
Date published: 2016-10-15
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Customer Reviews

4 in. Double Row Diamond Cup Wheel is rated 4.7 out of 5 by 65.
Rated 5 out of 5 by from I was pleasantly surprised at how well this worked and the speed at which it can grind a concrete... I was pleasantly surprised at how well this worked and the speed at which it can grind a concrete surface. First application was to grind a 4 foot long heave crack in a concrete floor in preparation for repair and resurfacing. I was able to grind the length of the crack smooth in just a few minutes and will little effort. The blade didn't catch or bind. Next a brick threshold was smoothed for repair and covering. The wheel easily ground the brick in a very controlled way without cracking or knocking off big chunks. Next I used the wheel to remove paint on a concrete threshold. Worked very easily and quick. It was also very good at removing lumpy residue from a concrete bathroom floor after vinyl flooring was pulled up. Takes more time to remove sticky residue but was still very effective. I don't know how long this will last, but it already saved me a bunch of time and effort so well worth the investment. I was skeptical but this worked better than I had expected. Wear goggles, ear protection, and a good dust mask! Silica dust is very bad to inhale. You might want to consider wearing a disposable Tyvek overall suit too. Otherwise you will be covered in dust.
Date published: 2017-01-02
Rated 5 out of 5 by from Exceptional Quality for the Price Decided to replace the carpet in the house with stained concrete slab. After pulling up the carpet edge battens, lots of nail divots that I had to fill, then grind level. Had a Makita 4.5" angle grinder, fitted this cup wheel to it, and it has performed for two days straight like a champ. (Was so impressed I went ahead and bought a 7" Ridgid Grinder and 7" wheel to do the "big stuff" out in the middle of the floor. Review of those upcoming).
Date published: 2016-09-11
Rated 5 out of 5 by from I tried to level a bit of concrete using an old cutting blade and it did nothing. Then I found th... I tried to level a bit of concrete using an old cutting blade and it did nothing. Then I found this and was amazed at how easily it cut through. I leveled a 3'x3' area pretty quickly. I'm still cleaning up the dust, however :-)
Date published: 2017-01-28
Rated 5 out of 5 by from Very impressed I tried this grinding wheel for the first time. I'm very impressed by the durability and speed at which it cuts. I used for about three hours to level some stucco and there is at least 1/2 the grinding pad thickness left.
Date published: 2016-10-04
Rated 5 out of 5 by from Used this to remove the glue from my wood floor and to level the concrete. It worked great! After... Used this to remove the glue from my wood floor and to level the concrete. It worked great! After clearing the entire floor, the wheel looked and worked like Tim was new.
Date published: 2016-10-25
Rated 5 out of 5 by from Amazing! I used this for leveling some concrete. It was an area of about 120 sq ft and this blade/grinding wheel did an outstanding job.
Date published: 2017-02-21
Rated 4 out of 5 by from Very reliable and great quality. Had some uneven spots on... Very reliable and great quality. Had some uneven spots on some concrete and this wheel smoothed it out with little effort.
Date published: 2017-02-14
Rated 5 out of 5 by from Great product, got the job done with ease. The Diamond... Great product, got the job done with ease. The Diamond Cup Wheel was simple to use and left a smooth surface.
Date published: 2017-01-24
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