Best surface grinding wheels according to redditors

We found 7 Reddit comments discussing the best surface grinding wheels. We ranked the 4 resulting products by number of redditors who mentioned them. Here are the top 20.

1. OCR 4" Concrete Turbo Diamond Grinding Cup Wheel Three Row Turbo Cup Disc Grinder for Angle Grinder 12 Segs Heavy Duty (Yellow 12segs B)

3 mentions
OCR 4" Concrete Turbo Diamond Grinding Cup Wheel Three Row Turbo Cup Disc Grinder for Angle Grinder 12 Segs Heavy Duty (Yellow 12segs B)
Heavy Duty Contractor PRO Grade 4 Inch Grinding Wheel.Large grinding segments with heat treated cup design.This aggressive turbo cup grinding wheel provides for very fast cutting action on masonry, stone and concrete.Three row design for grinding granite, marble, rock and concrete, use Dry/Wet to sm...
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2. DEWALT Grinding Wheel, Double Row, Diamond Cup, 4-1/2-Inch (DW4774)

2 mentions
DEWALT Grinding Wheel, Double Row, Diamond Cup, 4-1/2-Inch (DW4774)
Extended performance diamond matrix provides 350x's the life of conventional abrasives and aggressive material removalLarge Grinding segments with heat treated steel bodies which provides increases durability and wheel life
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3. SUNJOYCO 4" Diamond Cup Grinding Wheel, 12-Segment Heavy Duty Turbo Row Concrete Grinding Wheel Angle Grinder Disc for Granite Stone Marble Masonry Concrete

1 mention
SUNJOYCO 4" Diamond Cup Grinding Wheel, 12-Segment Heavy Duty Turbo Row Concrete Grinding Wheel Angle Grinder Disc for Granite Stone Marble Masonry Concrete
FAST CUTTING: Our diamond cup grinding wheel provides for very fast cutting action on masonry, stone, and concrete. High diamond concentration for long life and aggressive material removalDURABLE: Large grinding segments with heat-treated steel bodies of our concrete grinding wheel increases durabil...
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4. POWERTEC 15505 White Aluminum Oxide Grinding Wheel, 8-Inch by 1-Inch, 5/8-Inch Arbor, 120 Grit

1 mention
POWERTEC 15505 White Aluminum Oxide Grinding Wheel, 8-Inch by 1-Inch, 5/8-Inch Arbor, 120 Grit
Made of White Aluminum Oxide with a Vitrified bondDesigned to fit most stationary bench grindersIdeal for Steel ApplicationsSize: 8-Inch x 1-Inch; Arbor size: 5/8-Inch, 120 Grit
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Top Reddit comments about Surface Grinding Wheels:

u/frenchiebuilder · 2 pointsr/HomeImprovement

Wire brush works, but is kinda sketchy; the bristles fly off a lot. A cup grinding wheel is much way better & safer. A dust shroud is money well-spent, too.

u/Kalzenith · 2 pointsr/woodworking

Those are just three 8 inch aluminum oxide wheels intended for a bench grinder

https://www.amazon.com/dp/B016LQLD4S

I made the MDF wheels using a drill press, a jigsaw, and a belt sander

u/anti_crastinator · 2 pointsr/Pottery

dry,

https://www.amazon.ca/Ocr-Concrete-Diamond-Grinding-Grinder/dp/B01CQQR3DW/ref=asc_df_B01CQQR3DW/?tag=googleshopc0c-20&linkCode=df0&hvadid=292953024923&hvpos=1o7&hvnetw=g&hvrand=8380050951177615494&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1001920&hvtargid=pla-493842304061&psc=1

I haven't used one on a regular corderite shelf. Only silca carbide. I suspect you'd need to be a lot more careful with corderite. That said, I use silica carbide for bisque firings too, they're more expensive but it's worth it.

u/TimeyWimeyTable · 2 pointsr/DIY

Also if you want to expose aggregate you'll want a grinder wheel like this. Even at 50 grit the it will take you forever to expose aggregate. This one will uncover aggregate in about 5 seconds. It will attach to any 5/8-11 polisher. https://www.amazon.com/Ocr-Concrete-Diamond-Grinding-Grinder/dp/B01CQQR3DW/ref=sr_1_4?ie=UTF8&qid=1479154313&sr=8-4&keywords=diamond+cup+wheel

u/scottawhit · 1 pointr/castiron

Thoughts on a cup wheel? Might be even faster. I kinda want to do this to my lodges now. They’re definitely not as smooth as some of my antiques.

https://www.amazon.com/DEWALT-DW4774-Double-Row-Diamond-Cup-Grinding-Wheel/dp/B003XXE0RA

I may have to be the guinea pig and give one of these a rip.

u/PhysicsDude55 · 1 pointr/DIY

If you go the sanding route (which may not be the best way to go), you do NOT want to use diamond polishing pads. Those are for polishing, as in turning smooth concrete into mirror finish concrete. Not for something as aggressive as what you're looking to do.

You'd want a diamond grinding cup like this one:
https://www.amazon.com/dp/B01CQQR3DW/ref=cm_sw_r_cp_apa_i_I1eCCbNMJCFJW

With an angle grinder. It'll grind the concrete down to a finish that's smooth to the touch. It will go quick, less than an hour.

It will be MESSY. Grinding concrete creates a bunch of fine concrete dust that gets in your face, eyes, nose, etc. You'll want goggles and a face mask.

u/Chagrinnish · 0 pointsr/DIY

An angle grinder and concrete grinding disc would lower the time substantially.