ICICICICIC D1D1D1D1D1 Edge preparation type No. of edges KBN05M KBN25M CBN & PCD Tools 55˚55˚55˚55˚55˚ CBN Lineup Negative inserts 55° Rhombic Gray cast iron (with scale) Cutting edge preparation Gray cast iron (without scale) K Symbol Speci cation 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 DNGM 150408S00825BB1 S00825 1 12.7 4.76 5.16 0.8 1.6 N Chip Control LE S RE DNGM 150412S01225BB2 S01225 1 12.7 4.76 5.16 1.2 2.1 N Chip Control LE RE S DNGM 150404ME-HH 0.4 2.6 N 150408ME-HH E 2 12.7 4.76 5.16 0.8 2.2 N D11, D12, D14, 150412ME-HHHardened steel Finishing 1.2 1.9 N F90, F102, F104, F105,F106 (55HRC or more) LE RE S DNGM 150404ME-HL 0.4 2.6 N 150408ME-HL E 1 12.7 4.76 5.16 0.8 2.2 N 150412ME-HL 1.2 1.9 N Hardened steel Finishing (55HRC or less) LE RE S DNGM 150404ME-HD 0.4 2.6 N 150408ME-HD S01235 2 12.7 4.76 5.16 0.8 2.2 N 150412ME-HD 1.2 1.9 N Removing 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. C9