Komet's 813 is a double inverted cone diamond bur. Medium grit (107 microns). For a longer doubled inverted head, choose 806 double inverted long diamond bur.
Cavity preparations, especially, Class V.
Looking for a way to easily switch to Komet burs? Download and then print a Komet Bur Conversion Card here:
813.FG.010 (Item Number: 1901409): 5-pack.
813.FG.014 (1901410): 5-pack.
813.FG.016 (1901411): 5-pack.
813.FG.018 (1901412): 5-pack.