The Ingersoll Rand 7 Piece 2 in. Surface Prep Grinder Disc Kit is a variety of sanding discs for a pneumatic air die grinder for surface prep applications. If you're not quite sure what abrasives you'll need for your next project, Ingersoll Rand has provided a prep grinder disc kit for your convenience. This prep grinder disc kit starts you off with three different grit sanding discs, three different surface conditioning discs as well as a backing post and pad. Giving you a variety of surface prep tools, you'll be able to start any job with this prep grinder disc kit. Get the job done right with the convenient prep grinder disc kit!