Komet's 8957 (US Numbers OSD3 and OSD2) prep diamond matches H247/OS2, OS3 carbide finisher series. 8957 (OSD3, OSD2) has a fine grit (red band), 46 microns.
Working on fillings.
Looking for a way to easily switch to Komet burs? Download and then print a Komet Bur Conversion Card here:
8957.FG.007: 5-Pack (Item Number: 1901798)
8957.FG.009: 5-Pack (1901799)