RE Edge preparation typeEdge preparation type No. of edgesNo. of edges CBNPVDKBN900CBNPVDKBN900 CBN & PCD Tools CBN Lineup Negative inserts 90° Square / Solid Gray cast iron (with scale) T Cutting edge preparation Gray cast iron (without scale) T K Symbol Speci cation Example Nodular cast iron (without scale) F Sharp edge F Sharp edge Hard materials (Roughing) E R-honed E008 R0.08 mm honed T Chamfered T01215 0.12 × 15° chamfered Hard materials (Finishing) Q HSChamfered and R-honedS012250.12 × 25° chamfered and R-honedHard materials (Chip control)C Sintered steel - Dimension (mm) Insert Description ApplicableICSREtoolholder SNMN 090308S02020090312S02020 S02020 8 9.525 3.18 0.8 N1.2N D49 RE SNMN 120308S02020120312S02020 S02020 8 12.7 3.18 0.8 N1.2N D41, D49, D50 SNMN 120408S02020 0.8 N IC S 120412S02020120416S02020 S02020 8 12.7 4.76 1.21.6 N D41, D43, D49, D50N 120420S02020 2 N 60° Triangle / Solid Gray cast iron (with scale) T Cutting edge preparation Gray cast iron (without scale) T K Symbol Speci cation Example Nodular cast iron (without scale) F Sharp edge F Sharp edge Hard materials (Roughing) E R-honed E008 R0.08 mm honed T Chamfered T01215 0.12 × 15° chamfered Hard materials (Finishing) Q H S Chamfered and R-honed S01225 0.12 × 25° chamfered and R-honed Hard materials (Chip control) Sintered steel - Dimension (mm) Insert Description ApplicableICSREtoolholder 60˚ TNMN 110308S02020 S02020 6 6.35 3.18 0.8 N D51 IC TNMN 160408S02020S160412S02020 S02020 6 9.525 4.76 0.8 N1.2N D45 N : Standard item R : Right hand only L : Left hand only U : Check availability CBN & PCD inserts are sold in 1 piece boxes. C15