3Pcs 4'' x 5/8'' Nylon Filament Wheels Cup Brush Set for Angle Grinder ,Include Grit 80 120 240 ,Nylon Drill Brush Kit for Removal Rust Corrosion Paint (3Pcs Set)

My contractor did a horrible job and left my tile covered in grout. This was the only thing that got it off. Highly recommend!

Used for metal refinishing.

I purchased the KUOFU brand -3Pcs 4'' x 5/8'' Nylon Filament Wheels Cup Brush Set for Angle Grinder- I love finding and trying new heads for my angle grinders. It seems as though every time I find a new head that I will use regularly, I end up buying a new angle grinder or three (for various grits, styles, etc.). My point is, there is nothing like having the right tool for the job, and this my friends, is nothing like the right tool. For starters, the cup is a waste of time - as soon as you engage the power, these flimsy nylon threads are flattened to a disc shape. As soon as you make contact with any sort of a rough/rusted surface, the race is on! Its a competition between the rusted surface and the edge of the cup base to see if the surface can wear through the nylon strings before the edge of the base cuts it off and sends it flying! Its a unlike the nylon strings, the competition is tough. It appears as though the nylon strings are so wound up in the competition that they forget to actually remove much of any rust or chipping paint from the surface you're attempting to clean. For those of you still reading (and for anyone just skim-reading), the short version is: These are a poorly executed good idea, so until or unless they redesign this product and use higher quality material, I suggest you spend your hard-earned money on a product that does the job it is intended to do.

I used these sanding cups to strip the bark off a branch. The red one worked great at first, but started throwing bristles halfway through the project and was spent before I finished with the branch. I was using very gentle pressure because I only wanted to strip the bark and not score up the wood underneath. I am happy with the results, but very dissatisfied with the longevity of these brushes.

I haven't used these yet but they look sturdy. These came as a set of 3 different coursenesses. That's why I bought them. The only thing is that they don't have a threaded hole to attach to a power tool. But no problem, I have a way to adapt & use.

These are great little sanding wheels.

Use these brushes for doing woodworking projects. Must use slow speeds while using them as that is what they were made for.

these will fit on an angle grinder, and they do work, but not having a threaded nut, they are very hard to remove. the standard wrench that comes with a grinder will not get them off as you can't get them down inside the cup far enough. had to modify a wrench with longer pins to get them off. not worth the trouble. update: don't worry about getting them off, after about 20 minutes of sanding house paint there is not much left of them