DAMO 1” Wet Diamond Polishing Drum Wheels, Set of 7 - for Granite, Marble, and Concrete Undermount Sinks and Countertops

So good and easy to use. Fast to polish. Thanks

I needed to fabricate three under counter Mount sinks in porcelain tile. It did the job but I don't think I would make a living at it. I did most of my work with an angle grinder finished up with the polishing pads. They are not for stock removal. Get the drums closest to the final diameter of your inside Corners. That would help

They are one time use. They had so much glue on the bits that it just burnt my quartz instead. After using each bit, they will never be usable again. For the price definitely not worth it. Since it's a 1 time use they should be much cheaper.

Really great for Polishing corners

These work but they are expensive and the quality is iffy. I am surprised because I purchased a Damo grinding bit for a 3/16" radius edge and that was a well made piece. These not so much. I will echo what others have said there is an excess of glue build up that I had to clean off before I could start using them. I found a Dremel with a cutoff wheel worked well for this. At the end of the day they did polish the corners for the sink cutout in my countertop I just wish they were a little better made for what they cost.

Easier to control not too aggressive. Balance is perfect

very agressive. 3000 hits like a 1500 grit

Worked well for polishing bullnose and under mount sink.