HBKW Standard corner-R (RE)Standard corner-R (RE) WF Side rake angle (°)Side rake angle (°) Inclination angle (°)WFHFHFInclination angle (°) HBKW BH BH External turning Toolholders for ceramic inserts TN insert CTJN (External turning) LH 93° 93° LF D Right-hand shown Toolholder dimensions Spare parts Availabi-lity Dimension (mm) Chipbreaker Clamp set Shim Shim screw Shim* Wrench (hex.) Description Applicable inserts R L H B LH HF LF WF CTJN& 2020K-16 N N 20 20 20 2 125 25210.8 -6 -4 CB-12 / 13 CE-020 SP-221 M3X18 SP-223 LW-42525M-16NN25252515032TN..1607(TN..1604) Chipbreaker : CB-12 for Right-hand Toolholder, CB-13 for Left-hand Toolholder. Shims indicated * are not included with the toolholder. When using TN□□1604 type insert, please purchase shim (SP-223) and screw (M3X12) separately. CTUN (External facing) 93° 93° LH LF Right-hand shown Toolholder dimensions Spare parts Availabi-lity Dimension (mm) Chipbreaker Clamp set Shim Shim screw Shim* Wrench (hex.) Description Applicable inserts R L H B LH HF LF WF CTUN& 2020K-16 N N 20 20 20 25271250.8 -6 -4 CB-12 / 13 CE-020 SP-221 M3X8 SP-223 LW-42525M-16NN25252532TN..1607(TN..1604) Chipbreaker : CB-13 for Right-hand Toolholder, CB-12 for Left-hand Toolholder. Shims indicated * are not included with the toolholder. When using TN□□1604 type insert, please purchase shim (SP-223) and screw (M3X12) separately. Applicable inserts Applications Cast iron/ Hard materials Hard materials/ Cast ironCeramicsCBN Insert Toolholder CTJN - 16CTUN - 16 TNGN1607..(TNGN1604..) (TNMN1604..S02020) Page B114 C15 N : Standard item Recommended cutting conditions: D53 - D54 D45