POWERTEC 45204 6 Inch Sanding Discs, 40 Grit - Premium Aluminum Oxide 25 Pack Review

I get a lot of value out of every disc. I work with very dry spruce wood so it doesn't clog with resin, it just loses its abrasiveness over time. I still keep them for finer grinding.

I originally returned this item because it looked the same as another grinding disc I had previously purchased and did not remove anything at all. After using one I decided to keep it because it was a good product.

Works well. I used them to sand old oak floors. Have already reordered several packs of these grinding wheels. Used them with a Bosch grinder which is very aggressive when removing wood.

The sanding side of the sandpaper appears to be of high quality. But the other side, which looks like Velcro that sticks to the ROS backing pad, doesn't fit, unfortunately. The pad falls off the grinder after about 30 minutes of use and leaves no adhesion.

I have used different brands of sandpaper. Decided to give it a try because it is pre-cut for vacuum. Definitely doesn't cut as well as what I used. I'm sure it'll be fine for most who use it for small projects, but I wouldn't recommend it for in-store production.

I used this product to sand plaster painted off the surface of a 120 year old brick. I tried a few chemicals before grabbing my 6 inch sander with this 40 grit product. I didn't worry about smoothing the surface of the brick once I removed the plaster. Lots of dust and lots of discs, but all the plaster has disappeared from the surface. Acid used to remove gypsum stuck in the pores of the brick.

Looks good but also looks like 2nd factory or factory scrap, some of the rear grinding wheels in the box were damaged and had part of the front ones glued on from another cut disc but it's still a good deal and I'll do my job after fixing the defects on the back of the bad disc. Even if I can't use 1 or 2 bad drives I still think it's a good deal.

This is the second time I've bought these grinding wheels. The first package contained defective discs. I thought it wouldn't happen again. I ordered a second pack and it was defective again. The picture shows that a huge chunk of the unused disc is missing. I sent an email to Powertec customer service which was useless. Tanya V. said it was from another seller and not Amazon, although I gave the date and order number. Then I sent them a screenshot of the order. She then asked for a photo of…