For high speed turbine handpieceFriction Grip Oral Surgical Burs ( FG SURG 25mm). Friction Grip Burs ( FG 19mm). Shank Type: Friction Grip (FG). Shank Type: Friction Grip Oral Surgical (FGOS). Shape: Round / Pear / Straight Fissure / Taper Fissure Cross Cut / Crown Cutter.