Scotch-Brite Roloc Surface Conditioning Disc, TR 07481, 2 in x NH A MED, 25 per box
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These are available in a variety of grits, ranging from 240 to 60 grit. They also sell a polishing pad, which I believe is 240 grit.
Surface conditioning discs are commonly used with pistol grip type tools, such as the 3MTM Pistol Grip Disc Sanders for Body Repair Part Number 33577, or with a power drill and a drill mounted pad holder.
This is the 2" version of the product. The 3" is part 7486.
Although the disc may fit into other brands of roloc holders, there have been reports of the disc failing to fully lock onto the pads. We recommend using a 3M Roloc pad for this reason.
Selected User Reviews For Scotch-Brite Roloc Surface Conditioning Disc, TR 07481, 2 in x NH A MED, 25 per box
As others have stated, they do not last long, but they are useful for certain tasks such as gasket preparation, light surface rust removal, and light paint removal. I've used the word "light" several times in this paragraph.
These are extremely popular among my mechanics. They appreciate how simple and quick the Roloc system is to operate. We work with planes, which have a wide range of applications.
There aren't that many, I don't believe. I've been using them for a long time. Other than that, I'm not sure there are many options. They're easy to use, but they don't last very long; plan on using one for each gasket surface that needs to be cleaned. (i. e. the gasket joins two faces and you're finished).
These are what I used to remove gasket material from an aluminum engine block and cylinder head. When using a 1/4 angle air die to remove the gasket, no soft aluminum was removed. I can't believe I used a razor scraper and gasket remover to work on my previous engine. It's a hundred times easier with these pads.
It really works. While replacing a head gasket, I used it to clean up the iron engine block deck.
Great price; I ordered the wrong size but still used them. I used them to get rid of rust on a project I was working on. Although it had a tendency to lose its grip after a short period of time, it was still a good price and did exactly what I needed.
I somehow missed the fact that these were scotch brite discs rather than sand paper discs, but I'll keep them because I can use them. I put a lot of effort into one just to see how long it would last, and it turned out to be more durable than I had anticipated. For home use, they're a bit pricey, but if they last as long as the first one, the investment will be recouped.