What's a good dremel disc for cleaning any gasket maker off of my diff cover?

[rickhamilton620]

I realized i was missing two things to complete this project, one of them being a quick way to clean off the old gasket from the mating surfaces - I'd rather use the Dremel tool then my big old metal scraper/chisel thing.

Any advice? I have one of these: https://www.dremel.com/en-us/Tools/Pages/ToolDetail.aspx?pid=7300

 

[GRtak]

I use a putty knife for most of a job, then switch to a razor blade scrapper to get the stubborn stuff.