









DEWALT DW8311 4-1/2-Inch by 5/8-Inch-11 36 Grit Zirconia Angle Grinder Flap Disc
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Ryan L
> 3 dayThe flap disks wear out fast, and I mean FAST.
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BR
> 3 dayWorks very well, does not last long though so order plenty. I dont know how I ever did car restoration before without these. Removes paint quickly, removes rust pretty well too. Very fast paint stripping. Also really good for finishing body seam sealer or panel adhesive where you need to level and pretty it up.
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Summers II
> 3 dayI use these for sharpening my lawn mower blades. They dont take steel of they make them really sharp. Like always name brand last ten times longer than harbor freight
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Pan
> 3 dayBought this to sharpen my mower blades, based on a YouTube video I saw. These work so much better than a grinding wheel. Fast and easy sharpening, wish I had bought these years ago.
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Kevin B. Reynolds
> 3 dayIndustrial quality. Be careful, it may be more aggressive than you imagine. It does the job. You get this guy going at 11,000 rpm and youre removing some stuff.
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Nic
> 3 dayThis thing is awesome. I have a few uneven pieces of wood flooring that Id been burning quite a bit of time slowly sanding down. I decided to try this out instead and in about 10 minutes Id managed to do what would have taken a few hours with the sander. That being said, be very careful since it removes a lot of material very quickly.
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d
> 3 dayMakes short work of fiberglass for epoxy repair. I bought 2 of these but the first disc has little wear and should last a very long time when grinding fiberglass.
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Austin
12-04-2025I was suggested this product for sharpening lawn mower blades, it fell apart before I even got done sharpening one blade. Might work alright for a more gentle application that doesn’t include shaving metal. Back to the trusty grinding wheel.
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TY
> 3 dayI used this with a 4.5 Inch DeWalt Grinder. It installed easily and I didnt find that it slipped at all. I like the flaps because it allowed me to have a more smooth finish on the aluminum I was working with compared to a traditional grinding wheel. It doesnt bounce when you press it against the surface.
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ClLy
> 3 dayI like these but the life span of good grinding seems to be short for the price paid. The benefit though is the ability to grind without grinding hard flat points into the material. With practice you can follow the natural contour of the metal you are grinding. Use these when you want to shape or clean off the surface; used the solid grinding wheels when you need to grind down to get the final shape before using these disks.