Great. I would appreciate if you can teach me a few more things about these bits.

First, even from the Dremel site, I could not figure out which discs are cutting discs ( where it stated : only the thin edge should be used for cutting, but the flat surface should not be used for sanding - may break under pressure) and there are sanding discs. They look alike from the photos. My only possible method of differentiatin is to use the thin discs for cutting and the thick ones for sanding.

Is this correct ??


Second question , all those bits ( cutting bits, sanding bits ..etc. ) come in different colors like pink, white and grey.

What does every color indicate ?

Thanks again.