For Automatic Lathe External Shallow Grooving Toolholders [for GBF Insert] 1(: Screw Clamp  KGBF-F (without offset) *C*laCmlapmspcrsecwrecwancaanlsaolsboeboepoepraetreadtefdrofmromthisthsisidseid. e. F1 F1 B B 2° 2° 2° 2° T T L1 L1 α α L2 L2 H3 H3 h h H1 H1 H2 H2 • Right-hand shown Right-hand Insert for Right-hand Toolholder, Left-hand Insert for Left-hand Toolholder. G  Toolholder Dimensions Std. Dimension (mm) Spare Parts Clamp Screw Wrench Description R L H1= h H2 H3 B= F1 L1 L2 T Grooving KGBF& 1010JX-16F ● ● 10 4 10 1212JX-16F ● ● 12 2 12 2.1 120 18.5 3 SB-4070TRW FT-8 1616JX-16F ● ● 16 - 16 2020JX-16F ● ● 20 - 20 * Dimension T shows the distance from the toolholder to the cutting edge. Available Groove Depth: "B" Dimension of Insert. Max. cutting dia. is φ51mm The rake angle after installation in the toolholder is 20˚.  Compatiblity with GBF and GBA 1 GBF will fit KGBA / KGBAS toolholders Caution: The maximum groove depth for KGBA / KGBAS toolholders is 2.5 mm 2 GBA inserts will also fit KGBF-F toolholders Caution: The rake angle after installation in the toolholder is 11° 2.5 mm groove depth is available on workpiece diameters up to 200 mm max. 2.2 mm groove depth is available on workpiece diamaters over 200 mm  Max. Cutting Dia. Max. cutting dia. is φ51mm The workpiece interferes with the holder at φ51 mm workpiece diameter or larger 3 (Max. Grooving Depth) (Max. Cφu5tti1ng Dia.) Interference  : Std. Item G13