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

They are working great. Just what I ordered and needed

These things wear out pretty fast & they shed like a dog so make sure you wear protective clothing.

Es un producto duradero, de muy buena calidad.

Self destruct real fast

Poor quality control 1/4 or .25 shank is just shy of 1/4 cant tighten the die grinder collet , Worthless!

Poor quality item…. Not very durable

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

These things wear out pretty fast & they shed like a dog so make sure you wear protective clothing.

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.

Good value. Should be long lasting.