... , manual operation bur, ZZZ bur Wieland bur, VHF zirconia bur, manual operation bur, ZZZ bur The photos and introductions ... (2-flute~6-flute) end milling,(2-flute~4-flute) ball milling Type of flute: (standard and non-standard 1-flute ... , so as to realize high efficiency application. Wieland bur, VHF zirconia bur, manual operation bur, ZZZ bur