- Set used for crown preparation diamond high speed burs. Set contains 14 burs: - Bur 811 033. - Bur 848 012. - Bur 848 016. - Bur 850 012. - Bur 850 016. - Bur 858 012. - Bur 858 014. - Bur 859 010. - Bur 859 012. - Bur 863 016. - Bur 863 012. - Bur 878 012. - Bur 879 014. - Bur 889 009. **For further product information, please contact Chat Support**