ICICICICICIC D1D1D1D1D1D1 Edge preparation type No. of edges KBN05M KBN25M CBN & PCD Tools 80˚80˚80˚80˚80˚80˚ CBN Lineup Negative inserts 80° Rhombic Gray cast iron (with scale) Cutting edge preparation Gray cast iron (without scale) K Symbol Specification Example Nodular cast iron (without scale) F Sharp edge F Sharp edge Hard materials (Roughing) E R-honed E R-honed T Chamfered T01215 0.12 × 15° chamfered Hard materials (Finishing) N Q HSChamfered and R-honedS012250.12 × 25° chamfered and R-honedHard materials (Chip control)NQC Sintered steel - Dimension (mm) CBN Insert Description PVD ApplicableICSD1RELEtoolholder LE S RE CNGM 120408S00825BB1120412S00825BB1S00825 1 12.7 4.76 5.16 0.81.2 22.2 NN Chip Control LE S RE CNGM 120404S01225BB2120408S01225BB2S01225 1 12.7 4.76 5.16 0.40.82.22.4 NN Chip Control LE SRE CNGM 120404S01625BB3 0.4 2.6 N 120408S01625BB3 S01625 1 12.7 4.76 5.16 0.8 2.8 N 120412S01625BB3 1.2 3 N Chip Control D8, D9, LE RE S CNGM 120404ME-HH 0.4 2.6 N F87 F97, F99 120408ME-HH E 2 12.7 4.76 5.16 0.8 2.6 N 120412ME-HH 1.2 2.5 N Hardened steel Finishing (55HRC or more) LE RE S CNGM 120404ME-HL 0.4 2.6 N 120408ME-HL E 2 12.7 4.76 5.16 0.8 2.6 N 120412ME-HL 1.2 2.5 N Hardened steel Finishing (55HRC or less) LE RE S CNGM 120404ME-HD 0.4 2.6 N 120408ME-HD S01235 2 12.7 4.76 5.16 0.8 2.6 N 120412ME-HD 1.2 2.5 N Removing the Carburized Layer N : Standard item R : Right hand only L : Left hand only U : Check availability CBN & PCD inserts are sold in 1 piece boxes. C7