CBN Lineup Negative inserts 90° Square Gray cast iron (with scale) Cutting edge preparation Gray cast iron (without scale) N K Symbol Specification Example Nodular cast iron (without scale) F Sharp edge F Sharp edge Hard materials (Roughing) T E R-honed E008 R0.08 mm honed C T Chamfered T01215 0.12 × 15° chamfered Hard materials (Finishing) N Q P H Hard materials (Chip control) Q S Chamfered and R-honed S01225 0.12 × 25° chamfered and R-honed Sintered steel - Dimension (mm) CBN Edge preparation type No. of edges PVD - Applicable CBN & PCD Tools Insert Description toolholder IC S D1 RE LE KBN05M KBN25M KBN35M KBN475 KBN525 LE RE SNGA 120408S00545MEP 0.8 1.8 N D1 S00545 2 12.7 4.76 5.16 120412S00545MEP 1.2 2.2 N IC S Finishing LE RE SNGA 120408T01215ME 0.8 N T01215 2 12.7 4.76 5.16 1.8 D1 120412T01215ME 1.2 N IC S LE RE SNGA 120404S01225ME 0.4 N N 120408S01225ME S01225 2 12.7 4.76 5.16 0.8 1.8 N N N N D1 IC S 120412S01225ME 1.2 N D16, D17, D18, LE RE F108 SNGA 120404S01730MET 0.4 1.8 N N D1 120408S01730MET S01730 2 12.7 4.76 5.16 0.8 1.8 N N N N IC S 120412S01730MET 1.2 2.2 N N N Tough LE RE SNGA 120408S04030MEH 0.8 1.8 N D1 S04030 2 12.7 4.76 5.16 120412S04030MEH 1.2 2.2 N IC S Interruption LE RE SNGA 120408MEF 0.8 1.8 N D1 F 2 12.7 4.76 5.16 120412MEF 1.2 2.2 N IC S Sharp edge N : Standard item R : Right hand only L : Left hand only U : Check availability CBN & PCD inserts are sold in 1 piece boxes. C10