The 8379 is fine git, football/egg shaped diamond bur used for occlusal adjustments.
This diamond bur shape is also available in the following: 379UF - Ultra-fine grit 379EF - Extra-fine grit 379 - Medium grit 8379 - Fine grit 6379 - Coarse grit 5379 - Super-coarse grit 379XC - Extra-coarse grit H379 and H379Q - Matching carbide finishers
