Tapered Fissure Bur #699, FG, 19 mm - Carbide ( Pack of 5 )The Tapered Fissure Bur #699 is an all purpose bur that can be used to section teeth, gain endodontic access and is also useful as a general purpose bur. Tapered means the cutting diameter tapers towards the end of the bur and fissure means the bur can drill holes at its tip, as well as section teeth along its side. The smaller the number identifying the bur, the smaller the diameter of the bur. In this case #699 will leave a small sized cutting gap,