Now, you can use the same abrasives as auto body professionals at large collision repair shops, at home or in garages of any size. This compact and convenient grinding disc kit contains a 36 grit, an 80 grit and a 120 grit ceramic coated abrasive disc. It also features a Scotch-Brite ™ disc in coarse grit and another in fine grit, plus a Roloc ™ adapter that attaches quickly and easily to a household drill. Simply twist the disc onto the attachment and you're ready to start. You can interchange each sanding disc just as quickly with the same twist-off, twist-on motion.