Komet's H247 tungsten carbide finishing bur (US Numbers: OS3 and OS2) matches 8957/OSD2F, OSD3F diamond series. H247 (OS3, OS2) has 12 blades, normal.
Working on fillings.
Looking for a way to easily switch to Komet burs? Download and then print a Komet Bur Conversion Card here:
H247.FG.007: 5-Pack (338127)
H247.FG.009 (#7801): 5-Pack (338026) or 100-Pack (338128)
H247.FG.010 (#7802): 5-Pack (338027)
H247.FG.012 (#7803): 5-Pack (338028) or 100-Pack (338129)