Dental Burs FG 330 FG 245 Carbide High Speed Pear Domed Fissure Friction Grip by | Jul 8, 2026Dental burs FG 330 and FG 245 are most popular to prepare for bench tests. Shank Type: Friction Grip FG. Pear Head (Hemisphereical. Inverted coneical). For High Speed Turbine Handpiece.