BHA Zirconia Resin Fiber Sanding and Grinding Discs, 4.5” x 7/8”, 36 Grit - 25 Pack

They are a very good disc and last a long time

These work great for smoothing down welds and removing millscale. Alot faster and more economical than flap disks. Would recommend.

Excellent abrasive material, removes material quickly even at a fine grit. The only issue was how curved the discs were when received. Put weight on them and it didn’t work too much.

They are thick and have great abrasive. I used to buy red ones from the depot. These last longer, work better and are cheaper per pad! I have used primarily on wood but it works with some light metal grinding as well. Highly recommend especially for price.

exactly what I needed for cleaning up the berry's from welding.

I bought the 36 grit and they work really well for wood carving . Way safer than those chainsaw disks. These will remove a lot of material really fast without burning the wood . I weld also I will be updating the review when I use them on metal. I will be buying these again

They hold up well and last longer than other brands I've used

I got these to remove rust and mill scale on sheetmetal. I am far from impressed. The top surface rust it did ok on. The harder base black rust and mill scale just laughed at it. Cutting with the edge and working them with more than average preasure produced some results untill it knocked the heads off of the grit then they did nothing. They did a fine job of leveling out plug welds. I could use standard grinding wheels but they make a mess of the surface on 16 guage sheet. I'm going to try silicone carbide strip disks next.