12 Pcs 2”X 1” X1/4” Flap Wheels Set –3 pcs Of Each 40 60 80 and 120 Grits Aluminum Oxide for Remove Rust and Weld Burr – 1/4 Shank Fits All Drills

I have only used these a few times. They don’t seem as durable as some flap wheels I bought at a woodworking trade show a few years ago. I wish I could have found the 3” versions on Amazon in a variety of grits but these will do.

I'm using them to sand chip marks on glass. I sand them to make them smooth with 40 grit, and move to higher grit values for finishing. Silicon carbide is harder than glass so it works, and I'm very satisfied with the results. Right now I don't have a vice or stationary drill press, so it is a little awkward to hold the glass in one hand and the drill in the other. But the bits do the job.These inexpensive grinder bits are made of many pieces of sandpaper attached in a fan shape around a shaft. An ingenious design, and inexpensive to build. Each bit will last about 20 minutes of intense use as the sandpaper wears down to the shaft. A real stone grinder bit would work better and last longer, but you'd pay a lot more. Highly recommended as a low-cost grinder solution.

These were much stiffer than I expected - more like a hard wheel. If you need aggressive sanding on wood they would be great - I needed something softer and less aggressive.

Even light use causes these flap wheels to disintegrate quickly.

Just what I needed!!!

Polished out a cast iron skillet

These are really very useful for furniture work, edge smoothing, anything that you can picture them doing, they do well. Can't believe I'm saying this but, YES, YOU DO NEED A DRILL with a standard chuck (not collet), and the faster it can go (rpm wise), the more effective your sanding will be.So let's talk about value: You're getting a lot AND you're getting a good variety, different grits mean lots of options! After I bought this package for a very specific job, but my Dad immediately said he'd buy some off me, because he would need them for a project he's undertaking. They are versatile and valuable and so convenient. Plenty of uses!

I used these to sand some of the detailed work on 100-year-old doors. These are a little stiff at first but worked great after a few uses.

Funcionan perfectamente