M-jump 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 intending these for my dremel since I was in need of a bigger sanding wheel.. I purchased these which has a much bigger shaft and will only fit a standard drill not a dremel.

Needed to sand something on mutual plow , worked great.

Half of the shafts were bent. Some were so bad they were unusable. They seem poorly constructed and the usable ones dont last long. 2 stars for price, none for quality.

Used these on some rust spots on my 60 TV tower. Much easier and faster than hand sanding.

A smaller shank would allow them to fit on my Dremel, too.

Great product; I would buy again.

A smaller shank would allow them to fit on my Dremel, too.

Great product; I would buy again.

I had seen these before and I assume there must be some use for it, however, my experience is that this product is not functional. I used it to sand down a bike frame. the blades are relatively short and stiff. You need to apply a good amount of pressure. Otherwise only the outer edges will touch your work surface. Even with pressure, the contact with your work surface is relatively limited and you are effectively only using 10-20% of the sanding surface. The additional pressure makes the material wear out quickly. The blades tend to become frayed on the edges and too smooth to be effective. Possibly I am doing it wrong but I believe in order to be functional the individual blades would need to be a tad more flexible and maybe a tad longer.

Im 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 Im very satisfied with the results. Right now I dont 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 youd pay a lot more. Highly recommended as a low-cost grinder solution.