Komet's 858 is a needle-shaped diamond bur. Medium grit, 107 microns.
Ideal for occlusal onlays, the separation step: Prepare the interproximal region with the separating instrument 858 in an axial direction, protecting the adjacent tooth with a tension-free matrix strip and without extending the preparation.
A matching-shape finishing bur - 8858 diamond finisher.
Crown and bridge technique, crown preparation, occlusal onlays.
Looking for a way to easily switch to Komet burs? Download and then print a Komet Bur Conversion Card here: