A Studio JSD exclusive! Bristle Discs by 3M make it fast and easy to professionally finish your beautiful jewelry creations. Available in a variety of grits for all clean up purposes, from firescale removal through final polish. These kits, created by us, include 3 each of 7 different grits and 3 screw on mini mandrels, a great way to try out these fantastic products! We also carry the bristle discs in sets of individual grits, perfect for replenishing your kit with the discs you use most.