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

As described and worked good

Maybe works nicely on wood, but even trying so sand off powder coat paint it doesnt last any longer than 90 seconds

If you can hold on to your electric drill, which is not that easy with this attached, it will only do a mediocre job. Then it wears out. Meah.

These are really very useful for furniture work, edge smoothing, anything that you can picture them doing, they do well. Cant believe Im 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 lets talk about value: Youre getting a lot AND youre 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 hed buy some off me, because he would need them for a project hes undertaking. They are versatile and valuable and so convenient. Plenty of uses!

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.

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.

If you can hold on to your electric drill, which is not that easy with this attached, it will only do a mediocre job. Then it wears out. Meah.

For all the complaints about not being true to 1/2. Cant speak to that, but a makita electric die grinder has no trouble chucking them. They stand out stiffly at rpm... so yeah, you need pressure to use them.

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.

Self destruct real fast