Toolholders for Ceramic Tools [TN££ Insert] Top Clamp ¢ CTJN (External) L2 F2 Side Rake Angle: -6° Angle of Inclination: -4° F1 B 93゜ L1 93゜ H3 D h H1 lRight-hand shown ¢ CTUN (Facing) External Side Rake Angle: -6° Angle of Inclination: -4° F1 93゜ B 93゜ L2 L1 H3 h H1 lRight-hand shown l Toolholder Dimensions Std. Dimension (mm) Standard Corner-R(rε) Spare Parts Chipbreaker Clamp Set Wrench Shim Shim Screw Description R L H1=h H3 B L1 L2 F1 F2 CTJN& 2020K -16 N N 20 11 20 125 21 25 2 0.8 CB-12/13 CE-020 LW-4 SP-221 M3X8 2525M -16 N N 25 25 150 32 - (SP-223) (M3X12) CTUN& 2020K -16 N N 20 11 20 125 27 25 - 0.8 CB-13/12 CE-020 LW-4 SP-221 M3X8 2525M -16 N N 25 25 150 32 (SP-223) (M3X12) · CTJN (Chipbreaker): CB-12 for Right-hand Toolholder, CB-13 for Left-hand Toolholder. CTUN (Chipbreaker): CB-13 for Right-hand Toolholder, CB-12 for Left-hand Toolholder. · Shim & Shim Screw: When using TN££1604 Insert, please purchase spare parts in ( ) separately. l Applicable Inserts Applications Cast Iron / Hard Materials Hard Materials / Cast Iron Ref. to Page B103 C19 Ceramic CBN (KBN900) Insert Toolholder Description CTJN&…-16 TNGN1607.. (TNGN1604..) (TNMN1604..) (TNMN1604..) CTUN&…-16 Recommended Cutting Conditions D39~D40 N : Std. Item D26